The confusion over taking the test online was that in the above posts it was said "The previous poster is right though, get it done sooner rather than later, preferably before you land at your dispatch school, you'll increase your chances of success much more." I took the "before you land" as meaning before you get to the US.
Thanks for all the links no sig.
I might try getting some books as well though as I find reading from a book much easier and I can take in and remember more that way.