How can I determine what version of firmware I am running. Is this under /options/About? If so I see currently v4.1.2.204 (Platform 2.0.0.120)

If I need to update the firmware, do I just download the latest Desktop Manager and connect my BB?

Do I need to go to the phones provider website to get this upgrade. For example: My phone is 8700g (T-MOBILE), but I have it unlocked with Rogers-Canada in which case they use the 8700r.

Please advise

alt + cap + h

Good - you have the right information. 4.1 is the latest version of code for the 8700.

No - there are two components - Desktop Manager and the Handheld Operating System. You need BOTH pieces in order to upgrade your BB

RIM writes all of the code. The carriers test it and release it. But it is all written by RIM.

Check this thread - BlackBerryOS 4.x Download FAQ - UPGRADE DOWNLOADS - on where to download the software from. Here are the basic steps:

1) Back up your BlackBerry using the Desktop Managers Backup utility.
2) Download the latest handheld OS for the 8700 and execute the downloaded program.
3) Locate and delete VENDOR.XML on your PCs C: drive
4) Connect the BB and start Desktop Manager. The load should start.

i have the 8700c unlocked but i use it on rogers as well if i flash it with the rogers update instead of the cingular one will it lock back up my BB???

Once unlocked...always unlocked. You can use Rogers or Cingular either one. You could use TMobile, and a host of others as well.

yeah, I upgraded to the BHARTI software whatever but now I just want to go back to the Regular Cingular one............I can't find it and can't get it to install!

i'm trying here but it just won't work!