Thanks one and all...shame you can't book upgrades, on line up to the 48hr limit. The other issue with online booking is that you don't get back an email response one way or the other, so unless you call, or wait days for the postman to come, you really don't know if you're wasting your time or not.I called the PE number , which of course I should have done in the first place, and all is sorted, well, not quite, I am waitlisted for the way out, but at least the red eye back is confirmed. This is one benefit of the BA site, (not for upgrades as far as I can see,) but after putting your flight requirements and dates in, it clearly shows what is available, and you can book it right there and then.