I also notice that all the kits and logos can be edited without effecting the game - well on my computer anyway.
The team graphics are the .dds files in the club folders.
Also, all the graphics such as the team backgrounds, titlebars, buttons and logos can be edited, they are located in the RLM08_External folder (but should only be edited by an experienced user)
I'm not an artist, but maybe we should start a new thread for new kits, I'm not an artist so I'll just probably just put sponsors on if i have time, but if anyone wants to create the new 2009 kits.
here is an example of my poor first effort (I used the GIMP with dds plugin):
Also, if you are going to try, I'd advise that you back up the original image first, in case of any problems.