The project seems to be no longer maintained. Last version, 1.3, released in October 2012, can be still downloaded from Google Project Hosting.
This is currently embedded into the 7zip application, so if you want to use it just download vanilla 7zip and select the "Create SFX archive" option
Although discontinued, this was perfect for my needs.The resultant .exe when run by the user, unpacks to a temporary folder and executes desired program with Admin privileges.When user exits the program, it deletes the temporary files from the temp folder.Best of all, unlike WinRar SEs, it does not trigger any false positives on AV engines.
Our users have written 2 comments and reviews about 7z SFX-Creator, and it has gotten 40 likes