That sounds easy enough, just get a picture to use as a map, and import it as a picture. You will need to probably know a set of coordinates on the map, that will let you know the scale. There are ways to return the current pointer location (x and y) in the picture as well.
Bitmaps would be easy, but would give you limited functionality. You may want to look into an ActiveX mapping object like MapInfo MapX. Click here to browse through a google search.