those are of an m30/35 (top) and an m40/45 (bottom)
both are good machines but are pretty different from the m50/55 because of the screen size difference, as well as the difference in other features. still gives you an idea of what the machine is roughly going to look like. best bet for looking for more pics would be to look at the m60 since that and the m50 bear a closer resemblence.