Hello again, Shylock
The best way to deal with spam is to use a combination of Mailwasher and 'disposable' e-mail accounts (with either Gawab, which is my own preference, or Gmail). See here for details:
http://www.theanswerbank.co.uk/Technology/Comp uters/Question523930.html
I don't use the Google toolbar but this page would seem to provide the answer you're looking for:
http://toolbar.google.com/popup_help.html
The reason I don't use the Google toolbar is because (like most of the 'regulars' in AB's Technology section) I use Firefox instead of Internet Explorer. It's better designed, more flexible, faster and more secure than IE. It's got a Google search box (which can also be used with any other search engine of your choice) built into the address bar. It also includes a built-in pop-up blocker. When a pop-up is blocked, a small message bar appears. You can ignore it or, alternatively, choose what to do with pop-ups from that site. If you want to view the pop-up, simply choose to accept pop-ups from that site and click 'Refresh'.
Why not give Firefox a try? You can have both Firefox and Internet Explorer on your PC, so if you don't like Firefox you can simply switch back to Internet Explorer without any problems:
http://www.mozilla.com/en-US/firefox/
Chris