Hey, because I dont have Yahoo, I've tried searching on the internet for the location and can't find it anywhere
Try going into the main directory on the drive and look for chats or personal settings. Or go into My Documents and hunt there for personal locked files for instance.
Hopefully it'll be called something obvious. But I don't know if you could drag them off and put them onto another computer and it'd find them.
Maybe there is an import feature to import settings like that on another machine?
Sorry I couldn't be of more help