I know my repository is created because I was able to send a project to my account through FTP and then use svn locally through ssh. I also have Trac installed and the repository with it's files show up in there.
However if I need to ftp my files over, log in with ssh and do everything locally it's not very efficient I don't know which way is the right way to do it but I'm waiting for an answer from the support, hope they can spread some light on it.
The wiki needs to be updated yes, anyone who knows how to do this the right way can update it, doesn't have to be DreamHost.
If you find a way to do it, please tell me =)
Good luck yourself,