Not sure how many are already aware of this, I 've got a good news for those who struggled to get SNV versions working. VisualSVN is easy to install version of SVN which worked like a wonder for me.
http://www.visualsvn.com
Visual SVN + TortoiseSVN ( http://tortoisesvn.tigris.org/ ) + Anch ( http://ankhsvn.open.collab.net/ ) gives you perfect alternative to source safe and it is all open source !
Enjoy versioning!
