Re: O/T - Messenger pop-ups!!!
Browser pop-ups are blocked about 75% with pop-up blocker. Don't know the link but you can search for it.
As mentioned, SpyBot is good at finding spyware and removing that as well. Between those two you ought to get rid of a heck of a lot of your problem.
If you use Kazaa, they install a lot of ad server crap with their program and some of it is VERY tough to get rid of and reinstalls when you connect the next time even if you do manage to get rid of it. As for Kazaa, NEVER NEVER NEVER auto run it at startup as it will open a port to the world and there are a lot of bad people out there that get off screwing up peoples machines just to prove they can. Also, if you continue to use Kazaa, or similar as well I assume, always make sure to close it's icon from your task bar when you exit. Even after you close the program it will run resident unless you do this by right clicking it's icon by your clock and picking close.
You can also go to your start menu, choose run, and enter "msconfig". Pick the "startup" tab at the top. This gives you a list of everthing that runs when you boot your pc with a checkbox beside it. You can then uncheck the programs you don't want to run. If your not sure what it is, uncheck it. If something you need stops working, go back and re-check it. You'll be amazed at all the garbage that you'll find in there, especially if you've had the system for a while. This might even help your pc's performance by freeing up some resources being used by stuff you don't even want or need. Oh, after you manually make a change this way, when you reboot for the first time you'll get a windows message saying that you've changed something and it's wanting it set back the way it was. Tell it to leave you alone and check the "don't tell me again" button.
Sorry this ran on, but I know computers better than Jeeps at this point, so I wanted to try to contribute SOMETHING to this forum.