Thank you all for your replies.
I would like to think it was a false positive since I enjoyed working with Open Office. Also, I have Java 6 update 21 installed, only. Prior versions are always removed, in some cases with JavaRa, before installing updates. Also I downloaded Open Office from its official website, at the link in thomasjk's reply. Could this alert possibly stem from the document I received which may have been composed using an older version of Open Office? I do not know. I do know it was not a false positive since Microsoft offers some information on the alert and more can be found in Google.
At this point I have uninstalled everything involved, including Sun Java although I know I may eventually need it, which is unfortunate.
Again thank you all and I hope to return to Open Office again one day.