Camera Help

Hello World, I take my pictures shown in this blog on a Fujifilm Finepix J10 8.2 megapixel digital camera. Admittedly, I have little to no photography experience. Still, using the autofocus/autoflash features of this camera, I often get blurry shots or ones that are under or over exposed. I usually take half a dozen shots just to get one that turns out OK-ish. Is this because the camera is low-end, because I am not taking advantage of the features of the camera, or both? I welcome comments on suggestions for new cameras or ways of more fully utilizing the one I currently have. Thanks.