So I managed to get a set of these:

brand new, for £15! Possible accident on eBayer's behalf.. either way, they are mine now but they don't bloody fit! I know most of you won't like them, but that doesn't change the fact that I am a bit stuck!
Has anyone else had experience fitting such things? ..Am I ok to cut the skirts, strategically, so they fit on a bit better? I figure I can blend them in after to hide any small cuts I had to make..
Oh and these things are meant to go on over the top of OEM skirts, right??
Cheers guys
Adam