does not go back to 97. I am not sure myself if the 97 and 98 have the same fuse box(s) layouts as the 99, but you can try it to see what is going on, if you don't get an answer for a 1997 straight away.
The other option is to surf the wiring diagrams at the Chilton online site
The model is a F150, not F-150 as I keep typing in when I use it.
For the Future, you can try eBay for a 1997 manual, or you can order the Factory owners manual from Helm Inc. for 16.00 ( www.helminc.com