I am having the same problem using PAF for Mac. I have lots of files created for the program, but at some point I deleted the program (OOPS!).
Do you have PAF 2.3.1 for Mac anywhere? On a disc or on your computer? If you can send me the program as an attachment, I can convert any files you might have and send them back to you as an attachment.
I am in sort of a rush to get my files recovered - so please let me know soon.
Thanks so much in advance for any help you can give me