Update Notification Not Showing Anything

I have read through the issues with the Update Notifications and it seemed to me that there was an update to fix this problem with plugins not showing. I just updated my site to Wordpress 3 and also upgraded all of the plugins via downloading them individually and uploading them via ftp overriding the old ones. It took quite some time and would have been nice to be able to use the update notification plugin. After all that my plugins still do not show. Have I done something wrong in the installation of the plugin. It seems pretty simple. Just upload to mu-plugins folder correct? Please help as I would like to recieve regular notifications and be able to upgrade from the dashboard. Thanks.