Shoutbox

Hi there...
Yes, this is about the sponser program again, sorry. I have looked at the other posts on this subject but to no avail... and I'd be so grateful if someone could help me with this problem.
Ok, so i downloaded the new Msg Plus, and mistakenly agreed to the sponser (my fault for not reading it properly). I got rid of the toolbar by right-clicking and uninstalling... and it was all fine, except for one thing. Every time i pressed the 'stop' button or a page couldn't be shown for whatever reason, i didn't get the normal 'Page Cannot be Displayed' page, or 'Action Cancelled' page.  I got a page called 'Search the Web' with loads of links to casino sites, car sites..blah-blah-blah. I made an image of it:
I wanted to get rid of this, and, stupidly, didn't check out the FAQ on this site first. So i went about finding files that were created same time i downloaded Messenger Plus, and found one called 'GreatLinks'. I felt pretty sure this was the offending file and deleted it... i thought my problems were solved but the same 'Search the Web' page came back next time i went online. Then i DID check out the FAQ.. i uninstalled Msg Plus, and that didn't get rid of the annoying page 'Search the web'. I re-installed Msg Plus WITH sponser and then uninstalled it. Re-booted computer....felt sure the problem was solved... clicked on a site and pressed 'stop' before it had chance to load - and what appeared? 'Search the web'! AHH!
Please please please someone help me get rid of this annoying, irritating page?1 Thank you so much to anyone who replies!!
Maddie xxx