Hi Matty, As far as I know the 8 current 763's are in the process of having re-fits, I cannot confirm this thou, But it is planned to have the 75 76 fleet completed for May 2007.
As the SAS say - It might not go to plan??
I am more involved with the 757, hence the username, some airframes are over 14 years old now - one owner from new & still going strong!!
Have a good 763 flight & Holiday.
Regards.