The url to send messages via the web is: http://www.uscc.textmsg.com/Individual.html
The address of the recipient is their 10 digit US cellular phone number.
The limit on the length of the message is 150 characters.
I believe that is all you need. If you need more feel free to ask. When you want my number for testing it just shoot off an e-mail or whatever. Thank you in advance!