I'm not sure there's anything specific to DNN about SubVersion.  I don't use it, but tested it a while back for basic ASP.NET use, and while I personally didn't like it there is a fair size group that does use this for versioning and source control.  In my case I kept banging heads with the Apache runtime it uses, but CVS wasn't any better.  For me SubVersion worked fine as a client, just didn't meet needs as a host.

Might ask on one of the SubVersion mailing lists.

Jeff

I also had problems with Apache.  My issues were mostly just the fact that I didn't completely understand the suggested structure and set-up of a source control system. 

We have now had this running for a couple of weeks now, and I must say that it is the best thing since sliced bread!  Subversion by itself would be horrible, but I opted to use Tortoise in conjunction with Subversion.  The Tortoise documentation is excellent!  It took me through everything step-by-step.  Did you know that Subversion has the ability to run as a windows service?  This way, you can scrap Apache altogether.  This is what I did.  Subversion alone would not work in any windows shop.  But if you throw in something like Tortoise at it, look out!

Thanks for your help.