The Foundation recommend that you download from the official site. Any other site could be compromised in some way. Since the poster above has not indicated what his package contains I would recommend not using it. He also appears to be using RPF logos without permission.
Keep trying on the official site, there may have been issues last night, although I am not aware of any.
Principal Software Engineer at Raspberry Pi (Trading) Ltd.
Contrary to popular belief, humorous signatures are allowed. Here's an example...
"My grief counseller just died, luckily, he was so good, I didn't care."