Did you flash the Juicy rom yourself? If so, you can flash the stock Sprint rom to return to stock. Here's a link to the stock rom:
ftp://up.ppcgeeks.com/Touch%20Pro%20...60652_Ship.exe
Your phone is probaly unlocked because someone installed Juicy on it. If you don't know how to flash roms a quick search on this forum will turn up instructions on how to flash a new rom. Read carefully, follow instructions carefully.
The rom you chose is kind of bleeding edge, not surprised you didn't like it.
If you want to try a cleaner less buggy 6.5 Rom for sprint, try CFay's rom.