r6 suspension damper adjuster problems!

the front suspension damper adjuster screw has seized on my 2000 model r6 - when i brought the bike 3 months ago the jerk before me had the complete suspension on its hardest settings, when i come to adjusting it back to factory settings found the problem, i tried to free it off but it has now rounded and i am stuck with no front suspension damping, which is like riding a water bed!

just wondering if anyone knows how much of a job it is to replace the adjusters and is there a garage (yamaha wont touch it!!) locally who can do???

thanks for listening cheers all.

on the top or the bottom mate?

its the bottom damper screw mate!