I sidegraded / upgraded from Poser 8 Debut to Poser 8 and got issued a new serial number.

When I ran Poser 8, it had spaces for the new and old numbers but the old number space wouldn't let me type anything, so I entered the new number in the new number field and it seemed to work and didn't bother with the previous number.

Good luck. Smith Micro normally turn tech quesried around within the hour (for me anyway) during their working hours. Be sure to have all the info required to raise the tech ticket like the serial numbers, order number etc.

Regards. Mike.