New unlocked 8310 issue

[OveR]

Hi first off I guess I should have done my research before buying an unlocked phone. Anyway I bought a new unlocked 8310 off eBay for use on tmobile. I cannot get internet or anything that requires data to work. It has the latest software and have wiped the phone clean and called tmobile multiple times. Every time I open the browser it says your device does not currently have any browser configuration service book entries. I tried googling it but couldn't really find anything helpful. Am I just screwed? Thanks in advanced!
Posted via BlackBerryForums.com Mobile
]