I can't download it?

[TypicalPixel]

I've been playing since late Wrath and ever since then I've heard how great Vanilla Wow was. I always just kind of just shrugged it off and thought " Oh well, it's to late to go back now." But then I found Nostalrius. I followed a guide e.i the Beginner Guide 2.0 on the forums. I keep trying to download the game off of something called MEGA. It's what it leads me to. Anyway, I download it all the way to 99%. It doesn't finish or anything. I don't know what to do. I've been looking for someone who has the same problem as me but can't find one. I really want to join in the fun like the rest of you but I need help. Any suggestions? Thanks guys.