As every developer may gain access to the SVN, there already is something
like a central repo. The devs just have to put their stuff there. There is
also a wiki page but it's outdated too because we have to rely on the devs
to tell us when they made something. It's not that nobody wants it,
The upper link should contain the most recent versions. A lot of plugins
work with 0.7 when they are modified a bit (upgrade the xml, a work of less
than a minute) so you should give it a try. If you don't know how to upgrade
the xml I'm sure I or someone else will find the time to explain it