For what its worth here are Liverpool strikers who have no squad number:
Dalla Valle
Pacheco
Saric
Flora
Brouwer
Simon
There were quite a few guys sent out on loan last yer, generally to European clubs.
Think that is ion the back burner now due to Ferdinand etc getting injured.
Think Fergie mentioned this after Birmingham game.
... As far as a young premiership striker goes... Kriztian Nemeth please.
To be fair I think there is a difference between signing someone from the Scottish Junior leages and signing a youngster from Reading, who will presumably have come through a decent academy there.