>2) Allow for searching messages with no search string to see all messages from one specific member to another member by userid. There are times I remember a specific user responded to one of my messages but I don't remember exactly when it was and no matter what I type for a search string it doesn't get returned in the results. I only want to see all message from that userid to my userid.

The toolbar now includes another search for the messages area, next to the regular search option. If you refresh the toolbar, you will see it. From there, you will obtain a similar search form that that need.