Hi Gareth,
I see I replied on the thread link too - I think it covers most of the main points anyway.
I had to have a look at my fuse cover to remember what is what...
20A = Master
15A = 1) Ignition / Fuel pump 2) Hi & Lo Beam
You will need to get hold of a multimeter, Maplin do some good automotive types at reasonable prices.
The switch gear is very fragile at the best of times, I think the starter button uses the handle bar as an earth from memory but, like you, I think some insulation might have melted so have a detective job on your hands too.
Hopefully its mainly just regulator gone; £90 from...
http://www.electrexworld.co.uk/rr451...er-8310-0.html guess you will have it already but quite a few good tips in the WSM, hope this link works for you:
http://dl.dropbox.com/u/26653469/Workshop_Manual_SS.pdf Good luck - Frank