Automated upgrades from PS2

I seem to recall having seen a tool posted here somewhere that was an ELF that would automagically copy files to wherever you wanted when run. I can't seem to find it now, so does anyone know if such a tool does exist, and if it supports copying to HD partitions if it does?

I help a few friends keep up to date with the latest HDLoader stuff (all set up with identical configurations, with all non-essential setup/reinstall ELFs on the HD; only the FTP server and the format tool are on the card along with the menu), and it would be nice if I could toss them an ISO image and tell them, "Install this into your HDLoader using HD_Dumb, run it, and then remove it. It'll update your config for you."

Sure, I can use the FTP server, but that's flaky and prone to crashing when moving more than a meg or two-- and it requires I hand them a bunch of ELF files and say "Use FlashFXP, etc etc etc".