OpenACS

Is there any PostgreSQL developer working on the OpenACS (PG version of the
ArsDigita Community Sytem) project?

I have installed it and I am very much interested. There are a lot of small
bugs though, mostly related to Oracle->Postgres migration, and some which
are Postgres specific (queries that should work but don't).

I know C programming, and could start hacking in both OpenACS and Postgres
to make things work. Some directions from someone who has already dealed
with those projects would be VERY appreciated.