Does anyone know if any of the 2004 silver models had 17 inch alloy wheels as all the details i have found say they should be 15 inch and the garage i am trying to buy it off reckon they are standard., but im not convinced. I have the problem because my son would have to declare them if they have been changed

not sure how to add the picture its on justcarswiltshire website

http://www.justcarswiltshire.co.uk/used-cars/ford-fiesta-1-4-silver-3dr-trowbridge-201129403554144

The standard wheels are 16" seven-spoke (source: here) so you are right in saying your son would have to declare them as a modification.

Just to add, I'm 99% sure those wheels are the 17" Focus ST170 alloys but with the center caps missing.

the blurb i found relate to 15" wheels. The problem i have is we paid a deposit for it and the guy was changing cam belt because he didnt know when it had been done and we were unhappy without it being done, also he has put 6 months tax on it. But with a mod my son cant get insured, hes only 17

The blurb I linked to was from November 2003 and the picture matches the description. You could probably sell those wheels for a bit of cash and try and buy some standard ones?