Why can I not put the standard Task/Event "Type" field on a custom report type that includes activities?  It seems like a no brainer that the Type field should be on there for filtering purposes.  I would use the standard report types for activities but I want to filter by contact id and that field is not available to me in the standard reports just the contact name.  When I say the standard reports I mean that ones that are called "Activities with Custom Object".  So my tasks are "Related To" the custom object and the "Who" is the contact id.  I can get all of the information I need with a custom report type except for the "Type" field it will not allow me to put that field on the report layout.  Any ideas?