Tasked with configuring a MOSS 2007 implementation for external users to authenticate through Forms-Based Authentication (FBA), I hit the blogosphere recently. Based on some preliminary research, I was able to find the two sources referenced below. Rather than link out to the blog entries themselves, I have saved them off as PDFs.

Hopefully, assuming you are able to find my blog, having both of these documents in one location will save you a few seconds.

Configuring Multiple Authentication Providers for SharePoint 2007 by Steve Peschka

SharePoint 2007 Forms Authentication by Nick Swan