At the bottom should be a bar that says "Photo Details"
Click on that to drop down the menu
Click on "Edit Photo"
Scroll down and click on the box that says "Delete Photo"
My menu is an admin menu and this description may be a little different from what I just stated... but it should be close. It is set up so the poster of the photo can edit or delete it.
Boy, when I first read the topic of the thread I though maybe you had some 'good' pictures that I'd have to hurry up and look at before you deleted them.