Hello Mark,
> Excuse me for being a pest, but I can't seem to find how to compile the
> source for windows. I've downloaded MinGW but where can I find how to
> compile the source and install it on windows?
This should get you going: http://momjian.postgresql.org/main/writings/pgsql/win32.html
For 8.0.2 source instead, try: ftp://ftp.postgresql.org/pub/source/v8.0.2/postgresql-8.0.2.tar.bz2, which you will decompress using bunzip2 and tar (which will be in your MingW installation)
Cheers,
Claudio