Correct. Site is down. Supposedly it cannot cope with the inrush of download-requests. Which, basically, is a good sign.
So, you just have to wait. Be patient.

As for the pool-question: I'd recommend P2Pool, again: http://www.reddit.com/r/MoonCoin/comments/1xd1na/moon_p2pools
That way, you don't have to rely on the payout-logic of the pool-operators, since everything is handled by the P2Pool-wallet.