Just a note about the text superimposed over Windows while Parallels is being installed: proper English for this warning would be "Warning: Parallels Tools initialization is in progress. Please do not turn off or reset the virtual machine and do not perform any operations in the guest operating system until Parallels Tools initialization is complete; doing so may result in data loss." BTW, it's either well hidden or I'm blind, but I can't find a link to these forums from the main site. I expected to find a prominent navigation link or, at least, a link under support.
Nope, you're not blind. It was removed a number of months ago. See this thread (or you can search the forum for more info).
Yup, that's better. Or maybe "...has been completed." "Initialization" probably should be "installation," too. @kosh: Thanks for restoring my faith in my eyes!