I dont know exactly what you mean by "secure" host, but
http://www.sourceforge.net and
http://www.assembla.com
offer both good platforms for cvs or svn repository, bug tracking and other stuff. If you interpret secure as non-public, assembla offers private password protected repositorys. I'm not sure if sourceforge supports this as well.
For quick exchange of small code pieces http://www.rafb.net is a good ressource.
TortoiseSVN won the SourceForge.net 2007 Community Choice Award for Best Tool or Utility for Developers.
I don't think I stated really good the problem. What I was referring was a solution to share the same project. For Windows this is a good tool, user friendly and very easy to use.
For those interested here you can find step by step installation and using.
https://www.projects.dev2dev.bea.com/Subversion%20Clients/TortoiseSVN.ht...