All you need to do is download third part kits, have a look
at this site once you've downloaded all or the ones you want, go to
www.download.com and get a program called winrar.
Install it right click on the .rar files you downloaded then click extract here, that will then create a new folder, put that folder into, my computer, c:drive, my documents, sports interactive, fm07 create a folder called graphics, that’s where your kit folders go.
Then start the game up, go into options, preference, untick the skin cache and tick the always reload on confirm, then confirm, the kits should all show then.
I hope that made sense.