For general information see the SVN page on Codehaus.
Repository browsing
Check out Fisheye at http://fisheye.codehaus.org/viewrep/cargo. Alternatively you can check the ViewCVS installation at http://svn.cargo.codehaus.org but it's not as nice as Fisheye...
Anonymous SVN Access
Using the 'svn' protocol:
svn co svn://svn.codehaus.org/cargo/trunks
Using the 'http' protocol
http://svn.codehaus.org/cargo/trunks
Trunks
We're using svn:externals for linking all the modules together so that checking out trunks will get you everything. Of course you can simply check out the exact module you wish. See http://fisheye.codehaus.org/viewrep/cargo if you want to browse the SVN repository and pick the module you wish to check out.
Developer SVN Access
https://svn.codehaus.org/cargo/trunks