Decrypt old AIM log files?

Hey all. I’m on a MacBook. Back in Feb, my iBook died, though I managed to retrieve all the data off it, including my old AIM log files. However, more than half of these files are encrypted. I’d expected to be able to open them with my new MacBook, but AIM clearly doesn’t recognize them. (Is the encryption string different?)

I’m betting the answer is no, but does anyone know how I could view these files? I have some information stored in them that I’d rather not lose… Thanks!

Dave