Check out the HBP subpage for 2 new stills from the film

According to snitchsneaker.com, Moaning Myrtle will not be in Half-Blood Prince.  In the novel, Moaning Myrtle is comforting Draco in the girls room, right before Harry uses secumseptra.

Welcome to SecondViews: Harry Potter! This site is still under construction. Please check back now and again to see what we come up with!  We will be creating pages for each of the seven actual stories, as well as any miscellaneous sections.  Further content will also be developed.