Vast HTML

This plugin keeps people from viewing your site if they are using Internet Explorer 6. Gives options to download a variety of newer browsers.
For more information on the plugin visit: http://vasthtml.com/js/wordpress-block-ie6-plugin/

Block IE6

This Wordpress plugin will block IE6 users with a choice to upgrade.

Aleksei Tepljakov

The following fixes are included:
<ul>
<li>Header drop-down menu fix (works as expected with first 5 levels of page includes, requires JavaScript enabled in IE6)</li>
<li>Header menu width fix</li>
<li>Incorrectly floating avatars in comments fix</li>
<li>Font fixes</li>
<li>Widget title fix</li>
<li>Comment input form resizing bug fix</li>
</ul>
If there is need to alter styles associated with these fixes (for example, for a child theme), one may edit the <code>css/ie6fix.css</code> file included in this release.
NOTE: This plugin is only effective for Internet Explorer 6 with the Twenty Ten theme (and child themes). All the style fixes will be ignored by other browsers.
<h3>Credits</h3>
<ul>
<li>Alexei Teplyakov (Firelord): WordPress plugin and minor CSS fixes;</li>
<li>Peter Nederlof (Peterned): Whatever:hover HTC script.</li>
</ul>

IE6 Support for Twenty Ten Theme

This plugin brings Internet Explorer 6 support for the new default Wordpress theme Twenty Ten.

Block IE6 vs IE6 Support for Twenty Ten Theme