If memory serves me correct (yes it often fails me :-( ) Toga was never found, the last newspaper report I remember reading was that his (her?) parents had another one and it was doing fine.
No, the baby was never found but the parents did have another one which was reared almost under armed guard!
Isn't the 'March of the penguins' wonderful? I bought it recently and cried my eyes out at the sheer guts and bravery of the dads. The sight of them looking at the frozen babies was heartbteaking. Bit of humour as well in the long plodding line, bless 'em!