I have sorted part of my problems.
First I purchased the full version of the control. The version that came in the demo was version 700 and the version I received after purchasing was 750. So after changing all the references etc I had the same error :
Click to View Image32 View(s)
I then went through the properties of the .ocx file again, went to the digital signatures tab, click on an item in the signature list then the details button, View certificate, install certificate then repeat for the other item in the signature list.
On the security tab, I then clicked all application packages, clicked edit, and changed the permissions to allow for all options.
This got rid of the error I attached above.
I hope this helps someone in the future.