Stardock Central Operating System Detection

I purchased WindowBlinds 5 and was close enough to 6 that I received 6 as well.  Originally I was running Windows XP and of course used SD Central to take care of everything.  Now I have upgraded to Vista and WindowBlinds 6 keeps staring at me.  I'm looking for a concrete answer: if I choose to install it will it detect that my Operating System is now Vista and download the correct version *or* will I bork my system.  Don't want to risk it (because I have 250GB of installed programs on my primary HD and don't want to reinstall very much) so a bit of reassurance would go a long way for me!

Thank you in advance.

Bill.