Configuring recent versions of toirtoise SVN to work with non-standard ports is a bit tricky. I tried editing the “subversion config file” through Settings->General->Edit, to using an ssh command line, like the one I’m using on Linux for the same repository, but that didn’t work.
A quick hack-style solution is to go to TortoiseSVN->Settings->Network and set the SSH client to (assuming port number XX): “C:\Program Files\TortoiseSVN\bin\TortoisePlink.exe -P XX” (The hack is also described here:
http://www.