i just found this and i got 25% because i already used my coupon.  I found it on fatwallet so i hope it helps.  You have to have a hotmail.com on microsoft and then use the money with paypal.

here is the link i used to get start.  then ill post the information that was posted on fatwallet

http://search.live.com/results.aspx?q=nintendo+wii&form=QBRE

There is no known End date for this promtion. However, wisdom says that higher % is not going to stay for ever.

Remember: the percentage below is the high. If you get lower, refresh your browser until the higher value appears.
Now 25% (as of 7/28/08 @ 11:23 Pm EST)+ 10% eBay coupon (CJULYFUN0810P) = 35% off (YMMV - Must have received coupon directly from eBay!)

>>>Step by Step with Screenshots<<<

******** QUICK OVERVIEW ******* (thanks Troop)
People.

1. Go to eBay.com and find an item you want to buy (it MUST have a Buy it now option with paypal)
2. You can get up to $250 per completed item/auction. Pick something $1000+ to get maximum CashBack
3. Add that item to your watch list.
4. go to live search type in gold coin or try the following links until you see a CashBack link in the gray 'Sponsored Sites' section (refresh a few times if you don't see it)
gold coin
5. click on the 20% banner (Live Search CashBack)
6. Now you are in eBay go to my eBay and look at items on your watchlist
7. Click on that item
8. Click on 'Buy it now'.
9. Before 'Committing to Buy', be sure the CashBack details are shown on the screen with the proper 20% of the item(s) value
9. check out and pay with Paypal and the CashBack will be yours!

Note: If you do not receive a Cash Back message in your eBay Inbox in a few days, contact eBay through chat support. They will manually send the message to you.

****************

Go here: Clicky

Enter a high ticket item in the search such as: PS3, Xbox 360, gold coin etc.

You need to click on the Search link.
Check this picture

When you hit the 20% off jackpot click the link.

If you can't think of anything to buy and just want to make some quick cash, buy whatever currency is available for around $1000. Some sellers are offering modern currency for around $1000. This is a great way to make a quick purchase for a quick profit! Earn 25% back on $1000, and immediately deposit the cash you bought into the bank! ***THINK TWICE ABOUT THIS ONE. Many buyers have found themselves receiving calls from PayPal about these "modern currency" deals, and many sellers have had the listing removed and been booted from eBay. This is considered money laundering according to eBay rules and may result in no Cash Back AND punitive measures.***

Read the terms:

http://search.live.com/cashback/howToUse

.
http://pages.ebay.com/cashbackoffer/terms.html

In the event of a conflict between these additional terms and the Program Terms, the terms below are controlling for your participation in the Program on www.eBay.com.

eBay may permit you to combine CashBack Rewards with other eBay promotions, coupons, or gift certificates (each, an eBay Promotion)and may permit you to receive CashBack Rewards on purchases of gift cards or gift certificates. If eBay elects to do so, you will be provided with an opportunity to combine Cash Back Rewards with the eBay Promotion during the checkout flow on www.eBay.com. With the exception of eBay Promotions as described herein, CashBack Rewards cannot be combined with any other offer on purchases on www.eBay.com.

http://help.live.com/help.aspx?project=tou&mkt=en-us

You will not earn Cash Back awards on purchases where (a) you open the store's web site in a different web browser; (b) your browser is not configured to accept cookies; (c) the purchase is not completed in the same web browsing session (not to exceed 24 hours) initiated by clicking on the eligible advertisement or listing; (d) the order is later cancelled or the goods or services are later returned; (e) the store does not report the purchase to Microsoft; (f) the goods or services are acquired for resale or other business purposes; or (g) you also use a separate discount or coupon. Live Search CashBack awards are not available on purchases of gift cards or gift certificates (disputable: there no exclusion in ToS. Also I did see CashBack on checkout screen for a $250 gift card) or on purchases you make from yourself or entities that you control.

Profit

Q: A purchase isn't showing up in my account. What should I do?
A: Most purchases appear as pending within a day or two, but occasionally a store may take longer to tell us about your purchase. If you made a purchase more than 7 days ago that isn't displayed in your CashBack account, contact us with your purchase details. We'll get back to you just as soon as we can.

it appears $250 max per session is in effect
Speaking solely from my own experience. My first 2 transactions' rebate amount was around $240. My 3rd transaction's rebate amount was around $100, but during the final checkout via paypal, I got an error message saying "request cannot be processed at this time" but the paypal still deducted the amount regardless and I never received the CashBack message from eBay stating my Cash Back unlike my first 2 transactions. So be careful not to exceed $250 total rebate amount.
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Get CashBack not connecting to live.com

If you're a TWC/RR customer and you're unable to access the Get Cash Back button in My Message to create your account, do this:

1) Goto http://ww23.rr.com/prefs.php (or whatever redirection service is for your area). You can also find this out by typing tracert cashbackaccount.search.live.com on a cmd box and use the IP addresss of the last server hit.
2) Select disable redirection (this is the first option - web address redirection service).
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For those of you who got an error on the third checkout try here is the email I received:

Hello David,

Your Cash Back should go through just fine. If after 7 days your Cash Back still does not show up, we are happy to review your purchase with the merchant and to correct any Live Search CashBack errors. To do this, we will need certain transaction information. Please send your merchant order confirmation and information about the error to cashbk@microsoft.com so that we can investigate this issue.

Please allow 24-72 hours for a response from our Research Team. If you have any further issues, please don't hesitate to contact us again. If it is easier for you, you can access our Live Interactive Chat Support which is available Monday-Friday 8am-8pm PST, weekends and holidays 8am-4pm PST. We look forward to your response, and thank you for using Live Search CashBack.

Charles Wilkinson

Live Search CashBack Customer Support

12) Are eBay Motors purchases eligible for CashBack?
This is a gray area. Many fw members are reporting they are not seeing pending CashBack in their live accounts. The eBay T&C's do not, however, explicitly exclude eBay motors from the offer.

 Sounds good, but I can't find the link to get cashback from ebay anywhere. I am already signed up for cashback from Jellyfish

the link official is dead it end at 3:00 am last night. Hope some else got to use it