[doc_bg89]

hey guys..
I know this thread was posted a couple of times.. but my case is a lil specific I think.. I have got a bb curve 8900 with data plan 1mb and vodafone. I just found out BIS should work over wifi.. never new this. My bb isn't connected via wifi with BIS.. why that?! I thought maybe because a servicebook is missig.. is that right? do i need a specific servicebook for BIS over Wifi? I called vodafone but they just send me the normal servicebooks and it doesn't work.
please help me.. !!!