Well after a little work, I have some database communication working now via SWX. It's the account manager, which was chosen because the network communication for it is pretty simple, although the interface and the amount of field-validation isn't.

You can try it out at http://s26354.gridserver.com/accountman.php if you'd like. The database on that site isn't yet populated with all the old entries, and I'll be wiping it out and repopulating it before the big server-move, so don't worry about screwing up your account in the process.

SWX is actually quite simple. You can do the entire thing completely object-free and just use Flash's built-in CGI calls, but I went with the author's helper object because it has handlers for faults and timeouts and suchlike.