A freeview box connects to your TV aerial, and receives Digital Terrestial Television (DTT)
The FTA receiver you bought is to recieve satellite signals from the satellites 36000 km above the equator.
As such, the various contracts in place for the supply of channels are different unfortunately. CH4 and CH5 are stuck in a contract with _sky for their encryption, and these channels are known as Free to View (FTV).
Its stupid and illogical I know, but its about money amongst others.
Hey stop changing your post after I ve posted.
and a "loader" is software on a computer that enables you to download/upload stuff to/from receiver to computer.