I just install
http://adblockplus.org and never see ads. Specifically, I don't see the datafilehost ads, and the only download button is the .zip of the tools.
(I
don't use NoScript.)
Assuming you got a .zip you should be golden, although you could verify by checking the md5 checksums provided directly from Alf.
AdblockPlus makes it much easier to do things without having to worry about dealing with this garbage.