Create a certificate help

I saw the posting for creating a script for a certificate but am struggling to get it to work, i have tried everything I can think of but getting errors.

As you can see from this test link there is php errors that cannot be resolved.

http://gmdesign.org.uk/xxx

I have also added the javascript to a button to print it but its not working either.

I would be grateful for any help you can give.

you can download/see my full scripts by viewing the attached files