Helen - Well, I could consider help improving database module to at least show warning that entry is moderated (maybe only if it was before) instead of simply hiding it. I may even organise writing improvment which would show old version, but later. The main problem is finding anyone from moodle developers who are willing to spend their time checking this in. I don't want rush to write this and wait for 1-3 years for it to get attenttion - my usual experience with moodle patches (without any relation to how relevant developers tell this is a good thing to have in Moodle, they just don't have time).
Sorry for long paragraphs, I have to type them manually as TinyMCE still not working for me ;)