I confirm that Ep 15 was aired out of sequence and we can suppose that Ep 14 will be aired next week and one hopes that there is nothing in 14 pertaining 15 so that watching it out of sequence will not impact anything...
about the size, there are several resolutions of TV shows that are put out. the 350 is LR (for lacking other terminology) the 700 is HR, the image quality is better as the size is bigger (do not have in mind the numbers) and 720p versions of 1.5 GB size are starting to show up as well (very velcomed for people like me in Europe who do have big plasma TVs able to show it but no broadcasting available) and one could think will start to become more popular as HDTV is....
In fact there are discussions going on other forums on which formats should be on.