Thank you everyone for these responses. They are quite interesting. I thought .pdb was the format. All of my files were on Palm/Store which no longer exists. If they were supposed to get transferred over to Fictionwise, they did not. Got the runaround from HP/Palm who sent me to PocketGear who had no idea why they did that. I did discover that I need a Bluetooth adapter to hotsync my PDA. I also remembered that all of the files are backed up on my netbook. My daughter found a Bookshelf app for reading these on an iPod Touch, which I don't have but would like to get. I'll check out wiki.
Thanks!