It depends upon what the company IT Policy allows. You would need to talk to the BES Admin to see if those are allowed and will work.
Some of us here do not recommend using your personal BB on the company BES since the IT Policy can really restrict what you can and cannot do. Plus, it is never a good idea to mix personal and company info (email, phone, contacts, calender, IMs etc) on the company BB.
For more info, use the search. Also read these:
What can my BES Admin see on my BlackBerry handheld ... ??? - Port3101.org : Your BES Connection
What can a BES Administrator xxx8220;seexxx8221; on my BB...
http://www.blackberryforums.com/gene...y-look-bb.html
What does BES see; what can be tracked/logged? - Port3101.org : Your BES Connection