So hai. Here's a shiny new tutorial. I'll be showing you how to replace a hair here, but it's basically the same for clothes. You can replace hairs the same way you replace clothes, but it's more tricky because you have to deal with differences in the amount of groups. So here's a fail-proof way.
I'm going to make this friends-only for now, just to see if it's any good. Beware, this is way different from the other tutorial, so it may take some time to get it right.
What you'll need: - Something to replace - Something new to replace it with - SimPE