Well cheap the first link so i would ask the seller some questions like fitment etc if i were you. The second link i've read on here are a perfect fit.
http://cgi.ebay.co.uk/VW-GOLF-IV-MK4-3Dr-MK-4-SIDE-SKIRTS-SIDESKIRTS-R32-ABS-/200517718650?pt=UK_CarsParts_Vehicles_CarParts_SM&hash=item2eafc9927a
http://cgi.ebay.co.uk/GENUINE-VW-GOLF-MK4-MK-IV-4-R32-SIDE-SKIRTS-ABS-/170579510522?pt=UK_CarsParts_Vehicles_CarParts_SM&hash=item27b754c4fa
http://cgi.ebay.co.uk/VW-GOLF-IV-MK4-3Dr-MK-4-SIDE-SKIRTS-SIDESKIRTS-R32-ABS-/200517718650?pt=UK_CarsParts_Vehicles_CarParts_SM&hash=item2eafc9927a
http://cgi.ebay.co.uk/GENUINE-VW-GOLF-MK4-MK-IV-4-R32-SIDE-SKIRTS-ABS-/170579510522?pt=UK_CarsParts_Vehicles_CarParts_SM&hash=item27b754c4fa