I registered without problems even though I did press the Continue button. I had done what I normally do which is to uncheck the box to open automatically after installation and instead opened the program manually after installation was complete. That has worked on a number of occasions for me when others were finding difficulty in registering.
I tried out the program by comparing the result of removing a pylon and multiple electric cables from a photo with a complex background, with what I had done manually the hard way a bit at a time using free software (Irfanview and the plugin Wireworm, now supplied with it). It took me almost an hour to do it manually compared to 5 minutes in SoftOrbits Photo Retoucher and the result was very nearly as good. It is now considerably better than when I tried it with an earlier version of Photo Retoucher and is definitely a keeper this time.