Parallels Desktop on Dual Monitors

I dock my MAC at work in a docking station. I want to use the laptop screen for my Mac programs and want to use my desktop monitor for the parallels window and MS Office 2007 I run it in. I cannot figure out how, if it is possible, to move the parallels window over to main screen. I can normally drag items over, but I cannot with the Parallels window or its programs Any help on this?