Safari 3.1.1 and IE 6 User Agent

Safari v3 has made great improvements in its user agent for IE but seem to still have a ways to go. Can someone tell me what Apple's intention is with respect to these user agents? Specifically I am wondering what kind of support Apple is providing for it. I have a couple of web sites that do not render correctly with the IE user agents. Does Apple want these kinds of bugs reported and if so, where? TIA.