Since those currently online are not necessarily those that you want to send email, sorting the pane alphabetically by name seems to make more sense.
Sort the Contacts Pane Alphabetically in Outlook Express
To sort Outlook Express's contacts pane alphabetically:
- Click on the Contacts button on top of the pane.
- Select Sort by Name from the menu.
Using OESort, you can sort the Contacts pane by last name, too.