[Ifeffit] help

Hi all, I downloaded Artemis twice, from both cars.uchicago and sourceforge. Both times I downloaded the latest, 1.2.11.exe. When it installed, I opened Artemis and was prompted to install several updates. I clicked Install Updates, and both times it says: downloading fetching update 10 (iff_010.zip).... downloaded iff_010.zip OK. expanding file iff_010.zip and goes no further in an hour. I quit. When it runs, along the bottom it says the version is 0.8.012 (c) 2002-2008, which I was told is not the latest version (is that true?) My operating system is Windows 7 Professional. Can anybody offer suggestions as to why this happens? Does it matter if I don't have these updates? Aaron