I'm still not satisfied with the useage of a controller under source.
Since the ammount of buttons is very limited, it should be possible to use button combinations to execute certain commands.
I tried your config and it's working, but i had to switch the axis on the 2nd Stick.
So i guess allmost everyone who's trying to use a controller on Source will experience much similar issues.
A few might be able to solve them by editing the .cfg, but a lot of ppl won't even know where the files are located at, or what has to be changed.
Most ppl who'd like to use a controller on a PC game like GES are doing this because they're not familiar with mouse + keyboard input, so they try to use a controller because they know how to handle this input device.
If there was an easy way of controller configuration, we would surely include it into the game.
Maybe you could write a tutorial for controller setup under GES, maybe it can be included into the Wiki.