Community
Sorry that you are talking to yourself here...
Not a lot of Sketchbook Designer users apparently. I don't install it since there were some compatability and crashing issues associated with it.
The Autodeskers haven't even made a forum for the product (that I could find) so you might be on your own here. From this link it would appear that sketchbook designer files may not be entirely compatible with the swich to sketchbook pro (differnt product???)
Good luck