It looks like Tye was able to put together some quickie site upgrades that will hopefully allow his weekly WCA mirror to stay up for the time being. GetRight, among others, should work, and now it should force you to use non-segmented downloading. We'll keep you posted on any further information regarding this. Don't forget there is also our Lord Nightwalker mirror here.
Due to continued segmenting, TyeDyeBoy's WCA mirror will be offline for an indefinite amount of time. He is currently looking into means of preventing it from happening again. This will likely make it impossible for you to download with any download utility such as GetRight, even if you're only using it for its resume feature.