Sprint tp2 flashed to boost internet/data not working help

[masetas]

I unlocked my sprint tp2 installed mighty rom which came with windows mobile 6.5 called boost and activated the phone i can make/receive calls send text everything else works as well except for my internet over the data connection i keep getting a error message

saying Cannot connect Dialed #777 cannot connect for an unknown reason

aslo Data call failure Error code: 67
Erroc Code: 67 registration failure your pcs vision usernanme and/or password may be incorrect please try again.

someone please help. thanks
feel free to email me to masetas@live.com