Thanks for the pics- that helps a lot. First- were you in macro mode with those pics? I think with that camera the best macro performance is with the lens zoomed out to the widest point- that's contrary to what seems like common sense... to zoom in all the way to get the closest close-ups.
So to get the closest close-ups zoom all the way out, put the camera in macro mode, and place the camera no closer than 5cm (approximately 2 inches) from the subject. If the autofocus has trouble [hunts] aim the camera at someting with lots of contrast and texture that is also roughly 2 inches away, press the shutter release button halfway til the focus is good and keep the button pressed halfway while you reframe the shot on your intended subject- then press the button the rest of the way to take the picture. Let me know if that works any better for you.