JJJ, was this a psychologist or psychiatrist who evaluated Kanga and wrote the report? FWIW, only a psychiatrist can diagnose or rule out bipolar disorder. From what I understand from our psychiatrists, it is almost impossible to definitively diagnosis BiPolar (BP) until late adolescence/early adulthood.
My kids have dxes of MDD with a rule-out on BiPolar (BP), which means the psychiatrists are considering BiPolar (BP) as a diagnosis but they do not meet full DMS-IV criteria at this point to make a definitive diagnosis. For the record, however, my difficult children are being treated with mood stabilizers as if they have BiPolar (BP). Their main symptom is depression, but they flip out on SSRIs. They are improving on mood stabilizers.