I have played several games on 1.0 and never got puzzle 12 solved due to the master builder situation. I have done what the everyone suggest, and upgraded to 1.1. I have played for a few hours and have "bought" the first harvesting level. I just turned it back on and it is asking for a registration code. I have already paid for it once but don't remember the code. Any suggestions?

All you have to do is fill out the support form, supplying your purchase information, and LDW will send you your code again.