Well if there is no trace of that update in the registry, it can be a problem if a v2 comes out or the official shows up on winupdate. Not sure you'll be able to install that update then, without any way also to uninstall the old one.
Anyway I think microsoft will pop-up a big update pack soon on winupdate, I will not believe that they would pop-up over 30 updates the 22 october on winupdate, doesn't look good on the sheet for a launch day.