Thanks Jason
Checked that and re-copied from the ContactForm 103 contactus.php the first few lines and pasted into my contact.php.
Checking through the contact.php I seem to have some code from the old version of ContactForm and some from the new, so I stripped everything out and started again.
Copied everything from contactus.php apart from a few bits I didn't need and have pasted that in my contact.php.
Now the form fires but just comes back so presumably not submiting it.
I'm also getting the attached message keep coming up in Dreamweaver about the code containing a Javascript widget that no longer exists. I've attached the screenshot of the error message. Got a feeling I had this pop up before which is why I used an older version of ContactForm to create my last form.
Is the Javascript error the reason the form doesn't submit?