I have installed TRAC and SVN on a vhost of my plesk panel, however I get "404" when trying to access mydomain.com/trac and I get an "403" after accessing mydomain.com/svn when the user information prompt worked.
I need you to log in via teamviewer and I will have SSH open, then you will help me fix and set up TRAC and SVN, as well as help me create two sample repositories for svn. We will then add a user who has access to the first repository, and a user who has access to the second repository as examples so I know how it works.
This shouldn't take over an hour if you are an experienced linux admin.
I followed the instrucions at http://dtbaker.net/web-development/installing-svn-trac-on-a-plesk-host/