Thanks for the replies. I thought that I found that link to Ad-Aware SE Personal in the tutorial, can't remember because I have been so many places on this website that I can't keep track now.
The reason I was curious in the first place about the difference though is because I have seen a lot of posts where users are saying they aren't very fond of the 2007 version compared to the SE version and don't use it. I read that it is still a bit buggy. So I don't want buggy on my system, I want GOOD! I also changed from IE Explorer to Firefox and will see how that goes. I changed it on all four of my computers, the one my husband uses, and the two that the kids use. They are notorious accidental spyware downloaders! JEEZE!

But my husband's computer, which is an HP and has all the crap that HP puts on their system when they load up Windows, seems to have the most problems. My computer and one of the kid's computers are custom built and one was an eMachine that I put a new hard drive in and reloaded Windows XP instead of Home edition. Works much better now although I need more memory in that thing.
Thanks again for the help!