I was afraid of that & you're right, that's NOT GOOD. When you say "save the actual installer to another part of your computer", how would that have saved my PRO version? Don't you need to enter a S/N or activation code to upgrade to PRO? Advise if you can as I'd like to make this mistake only once. Reminds me of the definition of "crazy" - repeatedly doing the same thing while expecting a different result.......

Thanks for your help!