dblink to non postgresql dbms

Hello all,



I'm looking for a solution to query a SQL Server 2000 instance from
PostgreSQL 8.3.3.

I've been trawling the internet for some type of solution with out any luck,
I only found old references to someone talking about implementation of
create database link to postgresql



Does anyone know of anything?



I'm trying to avoid having to write a C table returning function.



Any help would be much appreciated



David