I want to transfer all of my previous game saves to my PS3. Anyway I can transfer it to a flash drive and save it to my PS3. I know there used to be something called dex drives for the PS1 that had a similar function.

I remember reading something about this somewhere. The ps2 game saves on the ps3 are in a different format, Sony's adapter converts them when transferring from the ps2 memory card to the ps3's virtual ps2 memory card. Theirs no software out yet that can convert them from other saves like the MaxDrive saves or the ps2's native saves, or whatever you have. It has to be done through the memory card adapter.

Memory Card adaptor.