downloading trial DreamCard gives me Revolution 2.5

[j]

> The products are differentiated by the license key you enter.  If you
> requested Dreamcard you will have a Dreamcard key, and if you launch 
> the
> program you will notice the splash screen says Dreamcard.

The problem is that I want to try both Dreamcard and Rev 2.5.  I 
downloaded them (it) twice, entered the two different keys in the two 
different copies of the app, and they are still both Rev 2.5.  I 
suspect the key is being stored in some file which happens to be named 
the same thing for both copies.  What if I had ponied up money 
yesterday for both before trying them?

J.