durnit.. this doesn't fix my specific issue. (I swear I am my own niche market)

My setup: Multiple users (not just for me; me and my wife use the comp), and my user account has a specific setup (permissions, tweaks, etc). Now, I am using MultiDesktopManager (http://www.muukka.net/multidesktop/) to have multiple concurrent shells within the one user account.

I am also having the explorer issue. :(
Every time I go to browse, I get the whole shell.
Is there any way to work around this without setting a system-wide shell, changing my shell from explorer, or employing a whole new filemanager?