OKDA  I got my license within a few hours, and I really wanted to unlock the trial version. I have two nephews with special needs, and they love this. It teaches all kinds of computer and mouse skills like dragging and dropping as well as letters, numbers and shapes. Simple and nice. The graphics are great and the kids love the reward sounds screens. Thanks.  
(Version 2.4)

OKDA  CORRECTION: They HAVE replied to my inquiry about registration, It went into my spam folder. I have paid to register this program. Sorry!  
(Version 2.4)

OKDA  After reading the post about no responses after paying for this, I e-mailed them ahead of purchasing be assured I would receive a license, but after several days, no response, so no sale. I really like the demo, too bad!  
(Version 2.4)

PHILIPZ  A very nice kids game, very educational. But after having purchased a license, no response. It's been some weeks now since I bought the serial but didn't get it, even after emailing the developer. Very bad service...  
(Version 1.6)