Sims 3 World Adventures Regional Code Problem, No Transgaming Folder

I get the exact same Regional Code error message as everyone else, but when I follow the directions posted here and other sites, I run into a little problem; I have no transgaming folder. 

Other threads I have found where people have the same problem, their questions are either overlooked, no one knows how to fix this, or the original poster's issue has been solved and the thread has been forgotten. 

Here is a screenshot of my Installer.app>Contents>Resources folder. I am running on Lion, if that makes any difference at all. 

 

This is the entire folder, and each subfolder only hosts two or three .strings

If I am over-looking something, or if this has already been addressed, a nod in the right direction would be greatly appreciated. No game has ever caused me as much frustration as The Sims have. Yet, here I am, trying desperately to find a solution. What frustrates me the absolute most is that not even two weeks ago, I had this game (downloaded from here and installed exactly as instructed) working, but had to uninstall and reinstall because I could no longer install any CC other than CAS parts into the game. 

Thanks for any help you can give. 

-s

Hello,

Please be patient while I get back to you after I get it checked at home. I do not have my Mac with me now.