hello!
Claire, dear (lol) I'll give it a go: typically one DID something so the game doesnt work ? I do! Sure I tried this alot, being that i mod stuff and so on. Im guessing that you somehow got a bad CC ? Who knows, it could be it ? well, good thing the games works now (doncha just hate to reinstall and all that..)
The folder that you renamed, inside that folder, theres another folder called 'downloads' right ? Inside it there are all that custom stuff you had ? you can take them and move them over to the new folder you got, under the same name folder 'downloads'. Maybe do it one by one ? Maybe don't move the last few contents that you got ? I just figure the last CC you got were bad, so skip that, and see if it works ?
In the OLD folder, that you renamed, there's also things like, recorded videos, screen shots, saved sims, exported sims, you saved games, ya and so on. If you look inside those folders, and browse the files, you can see, there might be something you want, especially an old save game
. It's easy to move them files over to the same directories.. and yeah, I think any file could be a problem, god knows why sims3 refuse to start.
You could also use winzip/winrar and occasionally take a backup of that whole folder, then you have a backup of these things like screen shots videos etc, these things that work with the 'integrated sims3 launcher'.
I try to stick away from these mods that are 'sims3 installation packages'. They are usually a s3p file or something, that you click and it installs thru the launcher. After that, the launcher places the particular installed content under that new downloads folder. Actually I think you can browse to the OLD folder and just double click the s3p files, they should then get installed, and end up in your launcher, under the download section..something like that