Hi sc
Assuming this is the 16 valve engine both camshaft pulleys should have the (exhaust) marks to the rear of the engine.The (in) marks to the front and level with the cylinder head face.There is a mark on the cover to line it up with!.The crankshaft should be lined up with the mark that is vertical on its own not the other marks together. If you are lucky you can wriggle the belt off after lineing the marks up and slide the new belt on. If the belt is loose you will have to loosen the tensioner and let it retension itself. Hexagon keys are needed here!
Terence Wright, May 2006