Could make a map a item, unless the picture is too big.
Make an object called 'map.' When the player uses the map object, go to a page that gives them a variety of links to other places.
That's probably how I'd do it, anyway.
I'd guess you just make the image via Paint, GIMP, or Google Images, copy it on photobucket and then slab the sucker on the Text page (or item)?
Yay, I can make a map for my story now! ^.^