Show status as ?On Track? unless any of the following are true...
-[Date Field1] is past due and [Check Box 1] is not checked then, show Status as ?Late?
-[Date Field 2] is past Due and [Field1] or [Field2] or [field3] are blank then, show Status as ?Late?
-[Date Field 3] is past Due and [Check Box2] and [Check Box3] and [Check Box 4] are not checked then, show Status as ?Late?
-[Date Field 4] is past Due and [Check Box5] and [Check Box6] and [Check Box 7] are not checked then, show Status as ?Late?