Htc P4351 Pro with T-mobile sidekick Data Plan

[Blaggah]

I'm new here and I'm hoping someone will be able to shed some light to my question. I have sidekick Lx at the moment, and I've been looking for a way to use my sidekick data plan to work on my unlocked Htc P4351? I've searched for a lotta hours and i can't seem to get any answers. If there are anyone here who could help me out, I'd greatly appreciate that. I didn't want to have to change my sidekick data plan because I'm only paying $19.99/mo.

[nir36]

how do you expect to use a phone's dataplan with another phone? you wanna switch the sim cards? if so, and if the P4351 is unlocked, it shouldn't be a problem to just switch sim cards and have it work.

[Blaggah]

Yes, i want to switch the sim card from the sidekick and put it on the p4351 and be able to go on the net. I have tried to mess around with the settings, i found on the tmobile website but nothing seems to work, unless i'm doing something wrong.