im currently on a 2 year contract with a sony ericksson vivaz and hate this phone so i want to sell it and buy a black berry curve and use my current contract sim card, but iv been told you need to have a certain balckberry data plan to be able to use it? how can i add this to my contract, is it free or do i not need it? i only need to be able to call, text and use the internet browser and send songs and stuff? can anyone help asap please?

Did you try calling your SP? And, BTW, patience is a virtue...

u already asked this question in a different post

call ur SP and ask them to switch u to blackberry data service