We recently had a project that needed to have subversion installed on Media Temple's DV Rage server. Our first attempt was using the svn+ssh protocol which turned out to be a bit more involved than we expected. Ultimately the solution requires the creation of a public key and sending that key along with your credentials each time you connect to the repository. After digging a bit more, we realized we could just use http using the mod_dav_svn apache package. Even better is that the developer tools now come with this package out of the box.