When I tried to install Camtasia 9.0.5 on a newly formatted computer, it said it needs Windows 7 Service Pack 1 64-bit installed. Searching for this, I only came to page after page of "downloads" but every one I clicked only lead to more pages. Is there no actual simple #$%% download link? I was trying to stick to trustworthy sites like Microsoft.com and cnet download etc. and even on those I found lots of floating "download" links but I can't be sure those are 1) what I want, and 2) safe to download. Any help with this please?