It's not clear to me how our driver diverted from the one distributed with AOLserver, since they asked for and got a copy of it and were going to incorporate it. And they've asked Lamar Owen and I to maintain their distributed copy as well, which hasn't quite happened yet (I've been busy, Kriston has to get me cvs privs at sourceforge, etc).
Anyway ... for ACS 4.0, the driver's likely to really diverge as it will be full of a bunch of stuff to map aD's Oracle's ns_ora routines that handle bind variables into routines that will build them into legal Postgres queries. The AOLserver version of the driver won't need these extra routines.
As far as the name change, originally postgres.so was offered as a demonstration of how to write a database driver for AOLserver. The switch from postgres.so to nspostgres.so came about, I believe, with AOLserver 3.0. We should probably track that change, I suppose...
