As Risto requested, I'm putting the errors I've received with the new Xtreme Pro version here.

Here's what I've come across so far.

English (United States) messages not found. Do you want to run the program in UK English?

After my first error I got this one:
This product has not been correctly installed (Error 2). Please install the product again.

Then the start screen said:
Trial version expired.

Not all together bad, but wanted the Xara team to be aware of them.