In Panther, the file visor.tiff is in the PalmBladeConduit.bundle in the SyncServices library. I saw it in my computer, when I was running Panther, but I couldn't find it on a factory G5 (no updates installed) and a current 15" PB (fully updated, still on Panther).
Good luck finding the file, (I couldn't even find that .bundle on those other two Panther machines, and I guess you don't have it either!),
CS