VA Website - Flight search results - Taxes?

Have checked the price of some flights I've already booked (out of curiosity, dangerous game, I know!) and almost had a heart attack when I saw the price had dropped by close to £150! On closer inspection it appears that the prices quoted in the Price Matrix now do not include taxes (I'm sure they did before).

Has anyone else noticed this or did these prices always exclude taxes?

[Scrooge]

As far as the US site, it has always excluded taxes, at least as far back as I can remember.