We apologize for the inconvenience of the previous link going bad due to high bandwidth usage, we are moving away from using mega shortly and will be bringing the auto updater back online for Windows along with offering the downloads directly through our website to avoid these kinds of hiccups in the future
On a side note we are investigating the stuck at block 5 issue some have experienced when syncing from 0. None of this should be cause for alarm as it is either lack of listed nodes (which there are plenty of and will be rebuilding the client with them added in shortly) or possibly a checkpointed block conflict. Has happened before when one of us is tired and gubers up the checkpoint hash.
Anyway we'll keep you posted throughout the day on progress and field as many support questions possible, please stand by