Aaaah hang on. Yours are ACTUAL facelift headlights. From what I understand from the eBay auction for the lights that Rich and I ordered, they are designed as drop in replacements for the 97-2001 Audi A3.
So, with the lights posted in the above links, it should be a drop in affair.
Well, I'm getting the 110 volt floodlights out tonight to have a mess about so progress will be posted....
EDIT - Oh yes, the link says things need to be modified. Oh ******. This looks like it might be a long job, especially as I am now busy Saturday so need to do it before then in case I need extra parts/stuff.