[Updated]. Ah, I found the problem. For want of a nail, the kingdom was lost! Your URL fails to add the "L" on the end of the file extension. It should end with "html", not just "htm". When I add that, now it works perfectly. I think the reason your browser was still getting you there, is that some browsers will still work on an "htm" if there is a file with the same base name. I am using Firefox, and it apparently will not resolve ".htm" when the full URL is ".html". Mystery solved!

Full link: http://www.thegunzone.com/rust.html

As for the test itself, it does have some useful material. I only wish it was more recent, so that it would include some of the more recent products that people are looking at these days. Items such as: Mpro-7, CorrosionX, Gunzilla, Ballistol, etc. But it's still useful for evaluating Breakfree, Eezox, etc.