I got my Samsung with Freeview installed from Currys as well, and I first set up the analog channels, then I used the Digital menu to set up all the digital channels.
Did you do that yet? You can access the digital menu using the remote.
I have recently bought a digital tv from currys and can only pick up analogue tv. I have tried everything I can think of and haven't got anywhere.. I only have Chanel 1 -5 and no freeview. Does anyone have a solution?