When you say a fuse had gone was it the fuse for the airbags (what does it say the fuse does on the fuse box cover?)

The above diagram is just for the instruments and warning lights. You would need the diagram for the airbag circuit to see what the fuse feeds.

Messing around with air bag control units and circuits can be dangerous if you dont know what you are doing. It may be best left to an auto electrician or a Ford dealer.