too late to upgrade from 6 after downloading 7 trial?

Hi,

I had Parallels 6 installed, and since I couldn't use it with ML, I downloaded the trial of Parallels 7 just to make sure it worked correctly. Well, it does, but now I don't know how I can go about upgrading from Version 6 to Version 7. Since I now have V7 (I thought it would install separate instances, since Parallels 6 was "incompatible" with ML....but it looks like it installed over it), I suppose there is no way to upgrade from my previously paid version (v6)?

I have registered with Parallels...can support allow me to upgrade? what else are you supposed to do if you have v6, which wouldn't run on ML, aside from download the trial and try to upgrade once the program would actually run?

Thanks,
Brandon