hey, pretty easy to do, dont need a spring compressor,
Drop the fork from the bike, undo the top bolt, slide the slide down a little and pour oil out (make sure you measure how much so you know what to put back in)
Undo the lock nut and top section (damper adjustment, spring preload) Slide spring out.
Then you need to go in from the bottom of the fork, undo the main bolt. This bit can be tricky as sometimes the whole inner assembly turns with it, on my forks there was a square recess down inside the fork I had to put a long screw driver into to hold it from spinning.
After this remove the fork dust cover, clip and then you can pull it all apart.
use this as a guide -
http://fiche.ronayers.com/Index.cfm/Mod ... Front_ForkHope that helps.