FWIW, you can find 2 pdf files of the Mitsu Motors Factory Service Manual (FSM) on mitsubishilinks.com. It's a 2 volume set hence the 2 files. I know for a fact an illustration of the fuse cover with fuse locations is in my 96 FSM. I would think the same will also be true for the 98 FSM.
Sorry, I don't happen to have a 98 or I'd take a pic for you too.