The Brits spell CENTRE one way we spell it CENTER...it’s their news article, so they can spell it anyway they want. Our presstitutes of the screaming media are too lazy to print something so mundane as a 200 year old ship, they’re too busy protecting nobama’s butt.
No, when it is a PROPER NAME they may not spell it any way they want if they are going to stick to the rules of English grammar. They have a party called the "Labour Party". That's how it must be referred to here. It's not the "Labor Party" when mentioned in the U.S., because there is no such thing.
A newspaper story in the U.S. writing about the restaurant chain 'H. Salt Fish and Chips' would not call it "H. Salt Fish and French Fries" because that's not the restaurant's name. Just as the building complex in Lower Manhattan has been named the "World Trade Center" it is wrong to rename it the "World Trade Centre." They may however talk about "that famous centre for world trade" in generic terms.