Forgive me for butting in, but the problem is that you need to cast the reference to the subclass type before you can use the methods and properties of the subclass.

	With CType(BizObj,AudienceType)
		.AudienceType = txtAudienceType.Text
	End With

(I am not sure that the cast will work with the WITH keyword, but the point is that you have to cast the reference to the subclass)

>In the PopulateBizObjsFromPage method of my AudienceTypesForm class I get a message saying that AudienceType is not a member of ParentClass.