sparrow.ece.cmu.edu 
The listed URLs can be used to checkout the repositories by passing them as parameters to the svn checkout command. For example, Fleet can be checked out by typing:
svn checkout https://sparrow.ece.cmu.edu/svn/repo_name/
If you check in a binary file, but svn doesn't realize that it's binary (i.e., it doesn't display (bin) when you run svn add), you can fix it by running:
svn propset svn:mime-type application/octet-stream filename
See the list of properties for other useful properties you can edit. You can also have subversion auto-detect whether a file is binary or not. See Bryan's writeup for configuration info.
You can learn all about Subversion from the online book. Here are a few pointers to get you started:
In order to write to a repository (and in some cases even to read from it), you will need to configure a username and password. This can be done with the htdigest utility, which can be run from /afs/ece.cmu.edu/support/apache/1.3.27-1/i386_suse81/image/usr/local/apache/bin/htdigest on rhapsody (and perhaps your own machine). You can create your own password file with the following command:
htdigest -c svnpasswd Subversion <username>
Email the resultant file svnpasswd to the administrator of your repository, and your password will be added to Subversion's access control system. If you ever desire to change your password, repeat the above procedure.
User passwords should be imported into /var/lib/svn/users. Group modifications should be made to /var/lib/svn/access.
Old CVS repositories, along with their complete revision history, including branches and tags if desired, can be imported into subversion in the following manner (all commands must be run as root):
~/[project])cvs2svn [--trunk-only] -s /var/lib/svn/[project] ~/[project]chown -R www-data.www-data /var/lib/svn/[project]chmod -R o-rwx /var/lib/svn/[project]/var/lib/svn/accesshttp://sparrow.ece.cmu.edu/svn/[project]/