Well today I was snooping around and stumbled across a comment on mysims3blog that said it would still work just as before without the UI mod, meaning if you had a mouse with a scroll wheel then you could install the skins and not need the UI mod.
I am soooo bloody happy. You just scroll with your wheel to see the skins. There is no scroll bar on the side, but they are still there I promise. Here are some screenies for proof:
Sooooo yeah another reason none of my housework is going to get done today ;) ;)