One of the big problems Gazza has is that he doesn't appear to have any real back up from those who surround him.
He can have all the rehab in the world but, unless he has a support sytem when he comes out, he'll fall of the wagon time and time again.
I remember watching a programme about him before and, even after he announced he was an alcoholic, his family were still taking him down the pub. It's like they don't really understand or want to.
I get the impression he had a lot of hangers on who liked to drink too which didn't help him either people like Jimmy Five Bellies.