I stuck this in last night and the first clue on the first crossword I tried said it all:
"The official flower of New Hampshire"
Which means this is a *very* lazy port that is still completely American-based. Imagine a UK crossword game being ported over to the US and having clues like "The county that has the bear and ragged staff as its emblem" and "Paddington's favourite sandwiches". There'd be an uproar followed by a rapid mass binning.
In short; avoid if you're wanting a UK localised version of this.