I know you must be very frustrated not being able to use such a great program you have paid for. Although I presume that Slysoft are a fairly small outfit, and it will take them a while to get through and respond to mails. It took them about 4 or 5 days to get back to me from an email I sent them. The only remedy they have is to employ more people and raise their prices...... Also the fact that this seems to be a fairly isolated problem, most people have upgraded to the newer version without a problem, so (don't take this the wrong way) for them it wouldn't be a priority case.
One thing to try is a full uninstall (make sure you have copies of your keys) reboot - do a full install - reboot - and see if it works then.
I do hope you get to the bottom of this though.