most digicams have a macro mode- the Olympus allows you to be up to an inch away and still autofocus. What you're seeing is seven shots, of about a hundred total. You may want to put the camera in spot focus, to trick it to focus properly. Flowers also tend to catch the slightest breeze, which can blur the image, so using a high ISO can help.
I don't use a special macro lens- I'd recommend trying a couple shots without it and setting macro mode (usually a little flower icon on the controls).