I bought the game from bigfish, and didn't recieve any sort of email confirmation. Now I'm dying to transfer it to my laptop as well, and can't seem to figure out how. I downloaded the free trial but can't unlock it. Is this some sort of annoying copy protection thing or am I just missing something?

In order to enable unlimited play, you need to enter the registration code that you should have received in a confirmation email. The first thing to check is your spam filters, since they frequently block emails that you really wanted to get. If your spam filters aren't to blame, you'll need to contact Big Fish Games for help, since LDW can't provide reg codes for other portal's versions of the game.