Do you have the address for the instructions you mentioned?
My next project (after putting my engine back together, heh) is to get the cruise to work again. I've got no idea what's wrong with it, since it hasn't worked since I've had the car, and I cannibalized some of the linkage arms to keep the rest of the throttle linkage working... long story, but I hope to get it all working again soon.
'83 240D "Steiner"
'00 New Beetle TDI