Hi Mrplant I have this Xcode..
Version 4.4.1 (4F1003)
I use Mountain Lion... I think you have to use some torrent or something similar... I doubt Apple leave this Xcode in the Store...
Runs fine...
Sometime Ago, I stay in your same situation... I try a lot of Xcode and anyone works!!!

This have to run 100%... I have this update of Mountain Lion... 10.8.2