Megaupload is lke a lot of free file sharing sites, a pain in the arse.
Click the link.
Enter the 3 digit code and click download.
Wait the 45 secs.
Click on the freedownload tab, when it says freedownload ,at the botom right where the seconds countdown.
Download should then start.
Its in rar format so you will need Winrar to extract it.
Cheers