Well, you could start by telling us what the problem is, first of all. Perhaps it does not require a wholesale neck removal...
If it does, then you pretty much do in reverse what you did to attach the neck, you'll most likely have to steam off the fretboard (or just the section #16-#22) and then steam out the neck tenon.
Well there isnt any serious problem with the neck i just want to replace it and built another one with a much more beter headstock and made from maple.thanx for the help!
Well what i did with the PRS was 1 year ago!