You can get the new IE8 here: Internet Explorer 8 download site.
TippingPoint DVLabs has a good article on the recent Pwn2Own contest where Charlie Miller took down Safari on OS X with a zero day exploit in a couple of minutes.
A fellow by the name of Nils then proceeded to take down IE8, Safari, and finally Firefox with zero day exploits of his own. Quite the talented fellow! :)
Take a look at the Pwn2Own articles and some of the other related content on TippingPoint’s Digital Vaccine Labs Web site.
While no Web browser is perfect, we do need to keep an eye on their specific vulnerabilities and the patches available for them as the Web browser is one of the principle tools used on a daily basis by all users.
Microsoft Small Business Specialists
Co-Author: SBS 2008 Blueprint Book