I'm not sure how helpful this is in writing American-sounding Lois and Clark, Laura, since it mainly seems to explain some regional British slang to an American ear, though in places we get American equivalents for UK English words. I actually have the book advertised for sale on the site - again, it's aimed at explaining some British vernacular to Americans and is intended to be humorous (which it is
).
As for 'the other' version of English, I think Australians would argue that there is at least one other version...
If anyone is looking for a good American-British/British-American online dictionary, try
this one , which has been linked here before.
Wendy