There is no such thing as a digital aerial. All of the hype around over the last few years about making sure its digital compatible was just marketing nonsense.
The antenna is tuned to pick up a range of TV frequencies, which are in the main, the same frequencies we used to use on the old analogue TV's, but the signal now contains lots of 1's and 0's that the new digital TV's decode, and turn into picture and sound.
So provided the cables and connections are are in good condition, and the antenna is able to receive both VHF & UHF frequencies (which it would if its only 2007) then it should work without a problem.
As
@Drover has mentioned, check that the antenna booster is turned on, and it should all work OK