How to tether using a Blackberry 9700 on AT&T?

[Killed by Ebay]

I want to tether off my cell phone, I have a BB 9700 from AT&T. I want to tether on a Laptop using Vista and a Desktop using Win7. How do i go about doing this? Anyone got any instructions of a Tut?

Ive searched google but im not sure if the OS on my computers may change the method to do so.

[boxcutters]

If your plan doesn't include tethering you can use software like tether.com or pdanet to tether it. I know tether.com works but it's not free has a trial though and pdanet is free dont know how well it works though

[Killed by Ebay]

awesome, thanks man, worked PDAnet worked great! Solved my IP Issues