Your IT department will know what you're trying to do, some companies consider this a breach of security as your trying to go past their firewall. This can land some in big trouble...
SevereDeceit is right...you probably shouldnt go around your ITs firewall...you could loose your job. Is BBM really worth that in this economy? Maybe talk to your IT guy and see if he would do it for you.
My company allows the use of Messenger so I don't see upgrading the app to a new release as a breach of policy.
absolutely it is. if your work network is running on windows xp, do you think your IT guy would be cool with you updating your computer to vista? it's the newest version, after all.
they might have an issue with the "save" option in bbm 5.0.... i was told that through BB desktop manager, they do announce that bbm 5.0 popped up and could be installed that way... not sure, never tried it...