Didn't the T2 viewing gallery close in February 2003? I'm sure I spotted there in either Feb 2003, and then 2 or 3 days later it was closed.
Seems a shame we cannot spectate anywhere. I guess all the spotters will have to descend on heathrow and spot anywhere and everywhere so that 'security' get so fedup with us all that they will demand that there be a place for us to spot from.