Hum, there were some poor explanations there guys
Basically sometimes files become corrupt. Well done, it has now happened to you. The way web browsers work is by instead of downloading the same page again and again and again, they temporary save things in a thing called a 'cache'. The file you just downloaded is in this cathe and instead of downloading a new copy each time, it just keeps re-downloading the corrupt version again and again. Simply using another mirror to download the file should do the trick, or you can try clearing your cathe if you know how to
Download from
here and it should all be fine.
/ 
