I have to use the coporate version of a desktop manager to connect to my company's email address. But i also have a personal blackberry. How can i use install 2 versions of desktop managers on the same machine. Or do i have to use two different machines to sync. Also the corporate Policy defaults the use of security passwork on the blackberry. Is there a way to bypass that. I am not able to change the setting going to the security option.

I would not install two versions of the Desktop Manager on the same machine. Perhaps under different Windows profile, but even then not so sure.

You can't bypass your corporate BES IT security password policies. They can change that timeout, you can't.