For 2009 tax year:
He will get some tax back, but not much as 10/12th of the year is passed. During 2009, and until he was made redundant, he was paying tax each month on the assumption that he will be working a full year. So he is entitled to some tax back.
For 2010:
On Jan 1st starts a new tax year which is independent of 2009 tax year. He will then be assessed on 2010 incomes (e.g. SW + pay when he gets a new job ) regardless of what happened in 2009.
Open to correction, but i think he indeed misunderstood something..