Bob,
thanks but
I don't need it in the front end (and I know how to do that anyway)
I need it in the backend, and specifically under one of the tabs for a Resource.
I need it to do some maintenance and updating of some Resources.
As I said, I'm sure CreatedOn used to be in there right under the Published and Unpublished fields, but maybe that was on Evo.
Anyway I thought I might be able to do it as a TV, but so far I haven't had any luck getting that to work.
Then I came across this
http://www.cmstricks.com/blog/2012/08/27/integrating-a-template-into-modx-part-5/ and got all excited about customising using Form Customization. Sadly no luck, but a very interesting article anyway.
Right now I'm thinking I may have to find it directly via the mysql panel.
Thanks