Since you were in Tech Support, you probably had an idea what was the matter. You certainly must understand what it is like working with 'users'. From your description, you just said two of the links didn't work. Having worked in IT in the past, that is a pretty vague description and I'm hoping you worded it better with Tech Support. It sounds like your downloads were corrupted. Either try downloading the 'bad' links again or simply ask them for new links. They have been helpful for most of the times I have used them and usually go out of their way to help you solve a problem. The few times they could not assist were due to 'bugs' I reported - many of which were fixed within a very short time in the form of a patch.

And, of course, use this forum for help. I think a lot of these guys have been around longer than some in Tech Support.

Good luck,
Rachael