I have a Nextel 7520, and 2 coworkers have 7290s.

One from T-Mobile and one from Cingular.

Can I download the latest version of the 7290 software that is linkedbelow, install it on my desktop (which is how I updated my 7520) and then push it to the Cingular 7290?

https://www.blackberry.com/SoftwareD...ient=Rc4cZBaBN

I couldn't find any corresponding link for T-Mobile. Would the Cingular version work on that device as well? Or can anyone point me to the right version?

Or should I just leave these coworkers be, with whatever older version (still 4) they are running?

1) Yes - you can update multiple BBs (different models) from one desktop. If you are on a BES, just remember to say "no" if it asks do you want to switch PINs. Delete VENDOR.XML from the C: drive to ensure that an update is aways attempted.

2) T-Mobile has code at http://www.t-mobile.com/bbupgrade

If they are not having any problems, leave them alon. If they ARE having problems, upgrade them.