There might be light at the end of the tunnel then if the mark 2 never came with "15s then. But as Most Easterly Pandas claims - all other fiats are 4x98 studs.
OK, this is a lesson learnt the hard way; always double check things! Again, thanks for the advice, you've been a massive help! dave I think there are 15" wheels for the mark 2, I saw some on ebay before and they don't look the same as my wheels. Unless of course they have been listed incorrectly.