No Data connections?

[Guest Janggy]

I'm pretty new at the whole 'flashing' of roms. I flashed a few. But I can't find any that are HSDPA compatible. I'm running the i8000 Lite from

http://www.modaco.com/content/i8000-omnia-...-lite-20100410/

And now I have no data connections. I have no idea what to do, and I've been looking for what seems like hours.

I can fully make calls and texts, but I can't connect to the internet(via Bell service)

I'm just looking for a way to restore my phone to the original box settings at this point. D: