good so far, and no, it's not.
you should have a new " Saves" - folder
I'm kinda stumped on this one, sorry.
(Enderal and Launcher are on the latest patch, yes?)
could you take a look in
Steam\SteamApps\common\Skyrim\Data
there should be only the Enderal and Skyrim Masterfiles, no additional *.esp
apparently something went really wrong with your installation (uh, both times :/ )
only thing
I could tell you now, is to uninstall both Enderal and Skyrim,
delete possible remaining files in
Documents\My Games\Skyrim (maybe copy your Skyrim saves)
and reinstall everything
you could still wait with that, maybe someone else has some more ideas