Secunia says I don' have the latest version, but, I downloaded the update from the link and installed on two Windows Vista Home Premium computers and 184.108.40.206 does not appear to be installed. Is there a problem between Secnina and Adobe or is there something wrong with the update?
The update may have only affected some of the DLL files, rather than the main executable.
When you open Adobe Reader and Click Help | About Adobe Reader, and you see version 9.3.1, then you have the update correctly installed.
I have 9.3.1, so, I contacted Secunia for an explanation.