Transfering camera roll from iphone 3g to iphone 4.

I tried doing a search but didn't find an answer to this question.

I just upgraded to the iphone 4 from the iphone 3g. Everything is great except I can't figure out how to get the photos I took with my 3g onto my iphone 4. I don't see any folders on my pc (yeah, I know. I'm working on getting a MBP.) with the photos. Any help would be appreciated since some of the photos can't be replaced.

Disregard. I managed to copy them to a folder on my computer then just synched as usual.