|Lost your serial code? Here are a few ways to retrieve it:
http://compsimgames.about.com/cs/thesims/a/lostregcode.htm has a step by step way to retrieve the serial code from your own pc.
If you registered it you can check at http://thesims.ea.com/us/ log-in, choose "register" and on the next page click the hyperlink marked "add your product serial numbers here". Any cds you registered will show up there.
or try at http://www.ea.com/ (for this one you have to choose your country first and then find where it says "get into the Nation", log-in, find your log-in name and put your cursor on it and click on "my account" and then log-in once more.. once inside click on "your games" I think.. and it'll have all your serial numbers.)
Another thing you could do is ask at http://support.ea.com/
where you'll find this answer , using a tiny url since this was a huge one, http://snipurl.com/vcmm
Game files are found under "C:/Program Files/Maxis/The Sims". Under the The Sims folder are several other folders.
Most objects go items in the Downloads folder and some will be placed in sub-folders under GameData.
Custom skins need to go in the GameData/Skins folder. A skin has 3 files, a .bmp, a .cmx and a .skn file.
Wallpapers will end in .wll and go in the GameData/Walls folder.
Floors will end in .flr and go in the GameData/Floors folder.
Here are some helpful links to both technical help for your Sims 1 game(s) and to Custom content.
http://www.deviantsim.com/ has recolors of many of the Gnohmon objects.
http://home.woh.rr.com/torkle/ Has Makin' Magic hacks
http://www.c-and-c-enterprises.com/ (awesome hacked objects.. especially for unleashed)
http://simlogical.com Inge Jones' new and improved Simlogical with sims 1 and 2 objects and hacks