Problems downloading plugins- Logitech radio & multi pan

I am using Windows 7 for FSX. I have been trying to fix my Saitek-Logitech radio panel/ multi panel issues for a very long time! The folks at Logitech recommended I uninstall the current panel plugins and install the new ones from their site. I did not see an option to uninstall the plugins in the Saitek folder. I went into the Programs and Features area on my computer and uninstalled the Saitek software for the radio and multi panels. I then downloaded the FSX_Plugin_x64_Software_8.0.144.0 software for the panels and the Flight_Panels_x64_Software software for the panels' test page. The new downloaded test page is showing that both panels are working fine. However, both panels are now totally blank and nonoperational when I start FSX! Is there something missing here....? [/b]