You can
check out the way the download repository on the new site might be organized. This is just an example with a tarball of the whole thing along with tarballs of a few of the packages, obviously the structure needs to be fleshed out before we switch to the new site.
I'd like to add a download repository for user contributions, too.
The repository itself is an OpenACS 4 package called, appropriately enough, the "download" package.
