I attached a file that you need to install... This is the registry editor for your phone.
**NOTE**
YOU NEED TO CHANGE THE ZIP EXTENSION FROM "ZIP" TO "CAB" AND INSTALL IT INTO THE PHONE
Once you go into the programs called "PHM Registry"
You need to browse through the registry
HKEY_LOCAL_MACHINE >> COMM >> INTERNET SHARING
DELETE THE FILE IN THE INTERNET SHARING
THEN DIRECT YOURSELF TO THE "SETTINGS" FOLDER UNDER INTERNET SHARING
YOUR GOING TO CHANGE THE "FORCECELLCONNECTION" TO "SPRINT" NOT "PHONE AS MODEM"
ONCE YOU HAVE ESTABLISH THAT, REBOOT THE PHONE.
FOR THE PHONE TO WORK YOU NEED TO HAVE WINDOWS MOBILE DEVICE CENTER CONNECTED... AND PLUG IN YOUR USB, THEN YOUR DRIVERS WILL FIND THE PHONE.
THEN GO INTO YOUR PROGRAMS AND THEN INTERNET SHARING PROGRAM AND SELECT "USB" AND CLICK ON CONNECT. CHOOSE 'PUBLIC"