I reworked the primary NVG510 page. It's not much more informative and should be considered the one stop page for everything contained on this blog about the NVG510 that is useful for people without soldering irons.
Also, this will be the last time I touch that content probably. I don't have U-Verse anymore, and thus don't have to put up with that crappy modem anymore. I still have a modem to test things out on, so if someone manages to make an alternative ROM or something for it, I might try it.. But, otherwise, those pages aren't going to be touched.
Also, of course, if you find out something useful not documented here about the NVG510, I'd love to either link to your site or publish it with credit to you. the DNS problem is the most pesky thing. If someone can fix that and tell me about it, you'd earn 20 internet cookies, from me personally.