Load the filetree configuration from the configuration browser (Pharo 2.0 here) and you'll be good to go.
It works with any git repo. With the filtetree:// repository, it will put the files in your local workspace. Then you can use whatever git client to commit and push stuff out. I do use SourceTree from Atlassian successfully on both OSX and Windows8.
This is all nice and well but frankly, basic Mczs aren't that bad after all :-)
Phil