Stus audit trail reporting should help if you what to know what happened when. But if you also need to know the data that was stored at the time the action was carried out, then let's use the More Inforamtion Required example and see where we get to with that. Does this action cause a window to pop up? If not, then Stus article above might give you what you need. If it DOES pop up a window, and I suspect it does from it's name, then it is quite likely (but not certain) that you will have a collection holding this information and then you can report on it.
To see what you have, ideally you would contact the person who did the design for you and ask them "Where did you store the More Information Requried Information, or is it a windowless action?" If you cannot do that (because the person is unobtainable, left, costs money to ask etc), then you going to have to reverse engineer this a bit. Now that action "More Information Required" is in the OOTB database and is a regular collection based action, so I strongly suspect if you look in the query designer you will find you can write a query against Change Management/Information Requests and that will contain your "More Information Required" data. You could also get to this by writing a query against Change Management/Change and dragging data from the Information Requests Collection onto your query. I'd go for the attributes Inforamtion Requested, Details, Create Date and Create user/Title.