Cant see any situation were this would be so. If this person sold on a license to you, then he will have no right to retain any part or use of the program -- it would now be totally yours. I would take this up with the seller, then if no joy, with Gossamer-threads. It actually sounds to me like a dodge deal.
~ ERASER
Free JavaScripts @ Insight Eye
~ ERASER
Free JavaScripts @ Insight Eye