basic buy sell market depth query

Interesting how the no of buyers 70M is closer to the number of sellers 95M than was the case a week ago when there was a much bigger gap in favour of the sellers (just going on my memory)? But this doesn't seem to be due to anything obvious (no announcements)?

While I am having a Clayton's 'senior moment' I am moved to ask a dumb question from one of our learned colleagues like GiddyYup. At the moment the market depth shows the buyers at 0.003 and the sellers at 0.004. OK - how do these turkeys actually buy MST shares at 0.003? Doh. However obvious this may be to everyone else, if I wanted to buy some more at the present time I lodge 'at market' meaning I will pay 0.004. Frankly I always prefer to buy at market - because I secure them without any delay. So when I look at the Course of Sales I see a bunch of Turkeys buying at 0.003 - then mine comes at at 0.004, then it immediately goes back to more turkeys at 0.003. Doh! What gives? Where did I flunk share investment 101?

By the way - don't be too hard on me - it's in my nature to put up a hand and ask the 'dumb' question - I never want to die wondering!