Steering wheel boss - fitting guide?



Hey guys, I've found myself with a bit of a headache. Bought a steering wheel boss kit off eBay a while back (secondhand) and it came without any instructions.

I tried fitting it from memory (fitted one to the car about 4 years back) but that didn't turn out well as I had a spare spacer left over, and when all connected the horn won't turn off!:doh:

Just wondering if anyone has a set of instructions for fitting an aftermarket boss and wheel combo that they could scan and post up for me? Pretty please?