You can still get Eau de Givenchy - it was reintroduced in 2007 as a 'mythical' perfume. That said, my first order hasnt arrived yet so cant say whether it still smells exactly the same. You can also buy little sample bottles with the blue lid, have done that before. They smell exactly the same as in the past.
Harrods sell it here but its cheaper to buy from America where there are several sites that do it and ship to the UK. Will report back when my bottle arrives 