Anybody saying that it doesn't pass Acid2, you have to run it from the official webstandards.org website, not the acidtests.org web site.
Full explanation as to why here: http://blogs.msdn.com/ie/archive/2008/03/05/why-isn-t-ie8-passing-acid2.aspx
Ah, yep thats OK it works now, I thought the acidtests.org site was the new one for all the tests .