As Anaris said, the planet only makes sense if you consider that they are somewhat linearly aligned, and that the ocean east of the Far East island is either too large (and without useful sea or wind currents) or too dangerous (due to icebergs) to be navigated, hence why all new continents to be colonized have been west of the last, and the first settlements on their eastern portions (for BT and Dwi, at least).
Err...whut? The most recent continent was Dwilight, which, yes, was considered to be west of the other continents.
But the continent to open before that was, in fact, the Far East. Which, oddly enough, is considered to be east of all the rest.
Before that was the split from South Island to South-West (old) and South-East (new) Islands, and before that was Beluaterra, which, aside from the settlements on the eastern coast, had no particular indication of its location relative to other continents.
