READ THIS FOR MODIFYING DARKRP! VERY USEFUL WIKI! http://wiki.darkrp.com/index.php/Main_Page
Please try to use the git protocol instead of SVN to get access to DarkRP. GitHub has a very nice program for it: http://windows.github.com/
If you really can't/don't want to use git, you can still use SVN.
SVN link: https://github.com/FPtje/DarkRP/trunk