I am having the exact same problem as the original poster. Not only can I NOT download ANY file from this site, I CANNOT download the Ventrilo voice chat that my guild uses.
Yes, I use a download accelerator:
http://www.freedownloadmanager.org
but I don't believe the problem lies with that program as I am able to download from any other site I go to.
I have my computer updated, I use windows xp and have the latest Windows Internet Explorer that is available.
From what I have heard about the programs here available, I would very much like to be able to successfully download one of them.