monkie: It won't be updated until CS:S is ported to Orange Box.
There is very little reason to use Metamod:Source 1.6.x on the original engine unless you really need the new features SourceHook provides, and thus it is for developers only. That intention was not well delivered to the community and in retrospect our upgrade path looks a lot more complicated than it actually is. I've changed
www.sourcemm.net and removed the direct link to make that more clear.
See
this article for more info.
Sorry about that confusion ;]