I recently went through a long and painful process upgrading the processor in my PB 520 to a Newer 117 MHz. Along the way I searched out and found some of the software I needed to do this, and I can share it with anybody who needs it on a floppy disk. I have the two disk set of Global Village 2.5.5 modem software, which is needed to run the modem after a PPC upgrade. It was e-mailed to me by somebody at GV so I assume it is free to distribute. I also found the NuPower extension on a Newer Technology mirror site, and the folks at VST e-mailed me a copy of Emmpathy (a battery monitor and reconditioner). Luckily for me I have an external floppy on the iMac, so I was able to load all this stuff on the PB 520. If you are not so lucky, I can make copies and send them to you. There was a bunch of PPC upgrade cards on eBay a while back, so if you bought one like I did, you'll be needing this software. E-mail me at <valvashon@mac.com>.
Val