Gary101,
Welcome to TSG!
In Netscape 7, open the Netscape Mail window (Window > Mail & Newsgroups).
In the Netscape Mail window, go to Edit > Mail & Newsgroups Account Settings > Copies & Folders {listed under your account}
In the right-hand pane, Select Other in the When sending messages, automatically: section. From the drop down list, select Sent.
<img src="http://forums2.techguy.org/attachment.php?s=&postid=785233">
If this does not fix the issue, I would suggest starting a new tread. This thread has been marked "solved", so it might not get as much attention.
You can sort your messages by year by going to View > Sort by > Date
I hope this helps.