This paranoia may come off as foolish, but I just need confirmation.
This site does seem legit, people I've asked said it was okay, and I've seen one or two people use it, but I'm worried that I could still potentially mess up my PC upon installation. I've become paranoid since a few months ago where on Virus Total, SecureAge APEX flagged the software exe as malicious. The 32 bit version still says this, but the 64 bit one does not, but I still want to be careful.
It probably is. I'm pretty iffy about installing programs that aren't as widely known, or programs with no publisher name or copyright attached. I take it you've used this for a while. No issues at all?
Sure, I've been using it for a long time and I've had no issues. Microsoft has such a false positive report before, and I sent the software to Microsoft's testing and had it fixed.