its been about a year since i went for my interview, but i reckon its still the same!!
It lasted about 4 hrs i think and consisted of a big getting to know everyone session followed by the usual group tasks.
There was then an exam for Maths and English, followed by a video.
If you lasted the whole day finally there was a two to one interview.
It was a good day in all and the crew made me feel relaxed!!
Good Luck if your going for it, just smile and be yourself ........