Uninstall Digital File Pro 1 (That version is not compatible with DW CS5, and it is bundled into Universal Email 4)
Uninstall iRite (Not compatible DW CS5, you will need to upgrade to HTML Editor 3)
Uninstall Universal Email 4
Uninstall Cookies toolkit (it is bundled into Security Assist 2, and is not needed.
Uninstall security assist.
after uninstalling those extensions, reinstall Universal Email, then Reinstall Security Assist 2.