SharePoint 2007 modify edit alert templates

http://blogs.msdn.com/b/sharepointdeveloperdocs/archive/2007/12/07/customizing-alert-notifications-and-alert-templates-in-windows-sharepoint-services-3-0.aspx

http://blogs.msdn.com/b/sharepointdeveloperdocs/archive/2007/12/14/how-to-customizing-alert-emails-using-ialertnotificationhandler.aspx