Hi kabluckyj and
Try a free program from :
www.filehippo.comLook for latest version of CCLEANER, its usually at the top right hand side of the page.
Install it and select Analyze then Run Cleaner, that will remove cookies and temporary files, if you look in the options it has a section where you can select which cookies you want to keep such as for Pc-Pals and other sites that you want to keep your log in details stored for
After that click on the Issues tab at the left hand side and run that part, hopefully that will find, fix and delete whatevers causing the popups.
I would suggest that you uninstall Limewire as its a bit like Kazza used to be before it went to the wall and is probably the worst P2P for getting viruses and other nasty things along with the files that you want
If that doesnt work then please get back to us and we can try maybe altering some security settings or setting the popup stopper to be more aggressive.