Hi thewedge,
Thanks to read and follow forums rules that you can find on the top of http://www.seblod.com/community/forums/.
Did you assign your hidden field to your content view?
Be care a field with the type "hidden" can not be used with a live value. Only the default value of the field itself can be render in the content view.
If you need to set a live value on this field you need in your form to use a standard field type and hide it by putting it in the template position called "hidden".
Thanks.