If you have The Sims and you want to do some yourself, then all you really need are the Blair skins you can download (I could even put them up maybe) and Sims Makeover Studio. It might help to have GoldFacelift, but it doesn't work on my computer and when it did it was a lot of trial and error. And having a lot of skins helps as well. The more the better, so you have more options and can make your character look closer to how they're meant to look. And here's a couple of tips as well. If you want to create, say, a female WC character, you'll need to turn the filter off. That way you can all all the textures, not just the ones for any particular group. Don't worry if it looks a bit off, it'll be fine in the game. Also, once you have made a skin it won't automatically go in the game. The best way to do it is to rename the skin, simply by copying and pasting the name of an existing skin. Here's a bit of a guide for doing that.
B003fasknlgt_01
B=Body
003=skin type
f=female
a=adult
skn=skinny
lgt=light skinned
To put your character in the game, simply choose a skin that has the same attributes as yours and copy and paste the name, adding a name to the end of your skin. such as B003fasknlgt_01Mariko
These might have to change, so if you put in, say, Knight, then your skin might be B003mafitdrk_01Knight, saying he's a fit, black adult male. I hope this helps for all the budding editors out there, and I'll still do those skins, this computer was giving me excedrin headache number nine last night and I couldn't do it.