[Plugin: Search Unleashed] highlighting things i dont want it to (like code)

I’m using the AddThis social bookmarking plug-in, and well… I guess it’s better to show you…

Search google for “WP Wall”
goto second page, 5th link from the top
https://www.sibble.com/2008/11/wp-wall-plugin-elegant-grunge-theme-fixed-w3c-xhtml-validation-error/
(use google to enter the page though, for highlighting to work)

As you can see at the bottom of the post, Search Unleashed highlighted parts of the AddThis bookmark tool, which causes it to break.

Any suggestions on how I can get Search Unleashed to filter out highlighting the code for the AddThis plugin?

Thanks,
Jeff