I'm using this method to get CSS3 border-radius under IE7/IE8: http://css3pie.com/documentation/getting-started/
Although I'm specifying the path to the .htc file correctly, as evident from the fact my included font files are being loaded, no CSS3 border-radius is applied when viewing the site under IE7/IE8.
Before testing, I have disabled all CSS3 support-adding plugins and cleared IE's cache. The same .htc file works perfectly when using it in a static html file, not wordpress.
My wp site: http://eventinvestment.eu/