It SHOULD just be a change in the paths that you posted yesterday, Ducey.
http://www.gamesas.com/topic/1393521-version-control-problem/
You didn't answer my question on whether it has to be a share inside the Steam Directory, though ... Assuming it does not, then some form of internet-pathing should work. However, remember that WRITE permissions will be needed, and maybe some CREATE permissions as well ... so you'll need enough control over the webserver to make that happen and you'll need to be careful that you don't leave your webserver vunerable.
I would see if any of the teams out there are using VC (the Dark Creations lot may be able to help) and see how they have set it up and are using it.