I used to be able to append subject lines in saved emails in my inbox on Outlook 2003. But with a recent exchange upgrade, it doesn't work anymore, ANY suggestions?

This is an old posting that I found on the topic.
>>Did you know that you can append subject lines in your saved emails in Outlook 2003? I don't recall that being an option in previous versions. Am I correct? If so, this is a great help in managing email as I do much of my communication via the subjec<<<