I used Delphy's tool to convert the sims3packs to .package-files and put them in the Packages-folder under Mods. I haven't gotten them to show up yet but that may have been because I put them in the Packages-folder under HELS instead of the base game (trying that next after work).
Sounds to me like a Framework FAIL or a Resource.cfg fail. Have you extracted the framework into the "C:\Program Files\Electronic Arts\The Sims 3 High-End Loft Stuff" folder? If done correctly it adds a folder called Mods to that directory. In the "Mod" folder contains 2 folders, "Files" and "Packages". Your .package files whether they are CC or MODS go into the "Packages" folder.
Also, I have shifted all my mods and CC back into "C:\Program Files\Electronic Arts\The Sims 3\Mods\Packages" folder, just to keep things in one central location, and not have to move things around everytime an EP or SP is installed.