Morning Glory,
Is it BWIA? They are serve one of the London airports and they recently started serving Manchester to the Port of Spain/Trinidad.
You can see a picture of one of their Tri-Star's
here .
Colourful to say the least
Seriously though, I wouldn't worry about it.
Cheers
Landing_24R
(You never know, you might be on one of their shiny new A340's)