How to update to the newest snapshot?

Can anyone please tell me how to update to the newest snapshot without the auto-update site? As I have seen people with newer snapshot bug reports even when the auto site is down. I asked on the snapshot bugs page a few times now and have yet to get a response and the auto-update site is broken. Currently, I am running Chris's snapshot builds but they don't update for every snapshot. I would appreciate if someone would help me in my predicament. 
