I personally haven't used IE since Mozilla Firefox was released. In addition to my normal "anti" tool sets I do use a very handy script blocker, NoScript, which blocks scripts including Flash, Java, and cross site scripting among others. It is fully customizable and contains a white list table. This and several other add-ons, plus deleting cookies (and deleting persistent cookies) as they are planted, gives me some protection, or the sense thereof.
In answer to Gene's question the answer is yes. Your computer could be infected if you logged on with IE8 and Adobe's Java 6. In either case I would definitely run the "fixes" issued by MS and upgrade to IE9 or 10.
What concerns me, as an investor, about this particular exploit is why Capstone, and why was it limited to a narrow MS Language Pack audience?