If you dont understand the diredctions from mkiv.com. The compression tester you buy has directions in em. Its simple.
A quick run down of it is..Its basically like changing plugs. Unclip coil packs, remove coilpacks, remove sparkplug and place fitting from tester/gauge into sparkplug hole. Turn key and let car turn over a few times (4-6 times). Read what the gauge says is your compression. Then remove tester, replace plug, and move onto next cylinder, and start over. Simple eh.
MKIV SURFER - I didnt read the mkiv.com instructions when i tested mine.. and dont remember diconnecting the cam shaft position sensors, or the solenoid resistor sensor connector. Is it necessary for an accurate reading? All my #'s were within 3 to 5 of each other anyways.. and in the 165-170 area.