Hi Tim,We've spoken on the phone about this topic so this post is to keep other forum users up to date.
There isn't a way to select 'all objects by type', so you would need to use regular selection methods to build up the selection you want, i.e. click on individual objects, or drag a selection rectangle around the whole of the desired object(s), and use the Shift key in conjunction with click or drag to add to/delete from the selection.
Once you've established your selection, you would change the text as per my post on 7/29/2008.