We now have a section at VegasUsers.com for uploading and sharing .veg files.
http://www.vegasusers.com/vegshare/

The upload function will accept Vegas .veg files, VideoFactory .vf files, .zip files (whole project with media, up to 10MB). and also Movie Studio project files*. Enjoy.

*At least i hope so. I don't know the extension for a Movie Studio project file. I'm guessing it's either .ms or .vf. Anyone know for sure?