Outlook 2003 problem

[technolog]

Hope one of you kind people can help.

I stupidly tried sending an email with a 40MB attachment from Outlook 2003. The message is stuck in my outbox. Outlook keeps trying to send it and fails. I can't delete it using normal methods. Are there any utilities that allow you to get into the guts of the data file and delete things manually?

EDIT

Sorted it. Found a post on an MS newsgroup. Had to do the following - File\Work Offline - exit Outlook - re-start Outlook - delete message - File\Work Offline (to toggle back to online mode)