CRED Edit Link doesn't show form

Hi,

I have a custom post type called Job. In the file called single-job.php I have the following code:

<?php cred_edit_post_link(13233, get_the_ID(), "Edit"); ?>

The form is setup to edit the jobs post type.

When I click the link, the page URL changes from http://tsl2014.rockwoodmaple.com/job/test-pupillage/ to http://tsl2014.rockwoodmaple.com/job/test-pupillage/?cred-edit-form=13233 but the page is the same and the form doesn't display.

Thanks,

Lewis