Licensing is all dealt with by McAfee Customer Service who you will have to contact to sort out those issues with the number of licenses. I assume you are talking about the home products.
You can use the online Chat client to contact them,
To remove McAfee use the normal method: Control Panel/Add or Remove Programs (XP), Programs/Uninstall a Program (Vista or Windows 7).
Reboot and if you wish you could then run the product removal tool after which another reboot will be necessary.
I had to remove the attachment you posted as it was corrupted.