Hi Daryl,
I would suggest using Producteev’s email to task feature (even without the plugin), to create labels that match your colour scheme (they have colour options, but you can also just call a label “blue” if you want). All you would have to do is register the incoming email to your workspace, and then forward email to task@producteev.com.
You can apply labels, a specific workspace if you want/need to, and even schedule and prioritize the tasks via the email subject line using hash tags and general English.
Example of a scheduled task for you:
[Email Subject title] Friday at 3pm ##red — (adding a workspace would be #workspacename)
You could also multi-label, if you need to, and you can defer to other members of the team (if they are also on Producteev) just by writing that person’s name in the subject line. More than two people on the team costs money, though. Just you (and one other) and its all free.
Benefits: You have your tasks on your mobile/tablet if you have an iPhone/iPad, Android phone/tablet (using Astrid at the moment, though an Android app is due in June), Blackberry (via Taskee), or, if all else fails, you can manage entirely via email — even marking tasks as complete, adding notes, and other changes just by replying to a task notification.
With the plugin: If you utilize the Outlook plugin you can do even more, and make things faster to process from your desktop, as it allows you to select/view labels in a task from the Producteev tab in the task dialogue. You can check the box for the “red” label in Outlook, send it to Producteev and have it there when you are mobile, and you can label directly from email when mobile, and reference that in Outlook when you are back at your desk, adding your colour flag. The fact that you can simply click on the flag button in Outlook to send a task to Producteev is also a speed bonus.
I am not sure if the plugin is compatible with 2003, but I have asked Judi over at Producteev and expect she will get back to me shortly.
I hope this helps you out! :D