Remember, the picture may be backwards or upside down. It is a canadian camera most likely...
Oddly enough it looks like Alaska...in reverse!
I suspect the land mass (given the altitude) is an oddly oriented Australia. I believe that it is surrounded completely by wate with out a lot of topographical changes. I believe that North is to the right, so West is on the bottom...I thik it is hard to make identifications from space as we are not seeing the land mass in the orientation we expect. My 2 cents worth.
http://spaceflight.nasa.gov/realdata/tracking/
This site shows the recent track of space station. If the pictures current.