Many have noticed that some of the templates here are not compatible with IE6. I didn't have a way before to test with IE6. Now I use Browsershots.org to do the testing. And I've tested all my templates to see which ones are compatible with IE6 and all other browsers.
Most of my new templates, plus some old ones, are compatible with all browsers including IE6. They are all tagged with IE6-ok. But if you prefer to use other templates here that are not compatible with IE6, I'm sure less and less people will be using IE6 anyway.