Don I just noticed that you had posted this here without using the file base feature that Nate uses for his collection of the PDS. It's not emissary to use it, and we definitely want this thread in addition, but you might find the file base feature of keeping track of revisions at a single link useful.
It also keeps track of the number of downloads which is nice.
But you can achieve most of the same effect by just editing the first post here in this thread as you post updated revisions.