Although this is set up to text your message (like NBC TH and others), you can also enter by snail mail.  Here are the official rules.  You can go here to read the complete rules, how to enter, etc...   The contest starts February 4th.  Clues are given on TV.

Official Rules

NO PURCHASE OR TEXT MESSAGE NECESSARY TO ENTER OR WIN. PURCHASE OR TEXT MESSAGE DOES NOT IMPROVE YOUR CHANCES OF WINNING.

To enter using your cell phone:

1. The mobile phone used must be capable of sending and receiving text messages (sometimes "text").

2. To begin, text either the Code found in the commercial, or the Universal Code, to 843488 ("THEHUT") on your mobile cell phone. Your cell phone number and wireless service provider/carrier will automatically be captured in the database. You will receive a return message asking that you text your date of birth to THEHUT. By texting your date of birth to THEHUT: (i) you will be confirming that you have had access to, have read, and are agreeing to the Official Rules, (ii) you understand that no purchase is necessary, (iii) and you understand that you will receive one entry into the Sweepstakes. Thereafter, you need only text Codes or the Universal Code to THEHUT to receive an entry into the Sweepstakes. However, for an entry to be valid, it must be received and recorded by the Sweepstakes database.

To enter via mail:

1. Hand print your name, address, date of birth, telephone number, and any Code which appeared in a commercial, or the Universal Code specifically "bites" on a 3" X 5" card.

2. Insert the completed entry card into a hand printed first class stamped envelope and mail it to: Pizza Hut - "The Cheesy Hunt" Sweepstakes Entries, P.O. Box 6627, Saddle Brook, NJ 07663. Entries must be postmarked by March 26, 2007 and received by April 2, 2007. No mechanically reproduced, copied or facsimile entries allowed. Limit of one entry per outer stamped envelope. Entries become the sole property of Sponsor and will not be returned.

3. No other forms of participation are valid. PARTICIPATION BY TEXT MESSAGE, MAIL, OR BOTH WILL HAVE NO AFFECT ON THE CHANCE TO WIN. THE PARTICULAR VALID CODE USED TO ENTER (WHETHER A CODE FROM THE COMMERCIALS OR THE UNIVERSAL CODE) WILL HAVE NO AFFECT ON THE CHANCE TO WIN.

Winners will be drawn fromwinning entries.

Good luck, everyone!