Updated
I just got an email from Joe Hart over at SecureTest with a screen shoot confirming IE6 + XP SP2 + Acrobat Reader 6 is vulnerable.

Now we have:
IE6 + Acrobat Reader 4 + XP SP2
IE6 + Acrobat Reader 6 + XP SP2
IE6 + Acrobat Reader 7 + XP SP1
(possibly) IE 6 on non-XP platforms
Firefox 2.0.0.1
Firefox 1.5.0.8
Opera 8.5.4 build 770
Opera 9.10.8679