There are a few things you might want to check.
First of all, did you go to your downloads folder and double click on the installer to install the update? You mentioned that you downloaded it but never stated whether you installed it.
You may also want to check your Safari browser to make sure Java is enabled (Safari>Preferences>Security).
If you need Java 6, you may want to try this: http://support.apple.com/kb/HT5559
I hope that helps!