aitch god complex is the one after girl who waited.
sarah i agree, i don't think they should be searching the universe for young melody, but neither do i think it entirely consistent that the woman who called the doctor pretty much in tears asking "have you found her yet?" would leave river in the hospital (even if it is the best one in the universe) without some sort of reason - and much though travelling with the doctor is magnificent and wonderful maybe looking after your own daughter for a bit - even if she is a grown woman - might be your priority for a short while?
now i am NOT the type of viewer who wants it all spelt out and in a nice neat order BUT i do think this is a bit inconsistent. even a couple of lines of dialogue at the end of "hitler" might have made amy and rory's actions more credible.
of course - the characters all acting in inconsistent ways (the doctor trying to get everyone's attention throughout history at the start of Impossible Astronaut, anyone?!) might point to everyone not being who they seem. in terms of a restart button that goes way beyond anything rtd dared press!