Of course it doesn’t have to be that clumsy as I described in last post about upgrading to latest version.
If you have shell access to your hosting account you could use command line like below to check out the latest svn copy to your installation folder.
svn checkout http://habari.googlecode.com/svn/trunk/htdocs "habari"
I think “habari” should be my installation folder but am not sure as I haven’t tried shell access yet perpahs Site5 support will show me how.
By this I think I could always keep my installation fresh with the latest svn copy.
There is always another clumsier way to overwrite all files in the installation folder.