The best advice I can give is:- Get rid of the sony piece of crap and get a camera. ANY other camera. Not meaning to sound horrible it's just there are far better cameras available for the cost of that. If you got it for the bling (gold chains and diamond earrings factor), only your photos will suffer. If you got it because you were advised to get it, you shouyld go back and speak fiormly with the salesman. Sony do NOT make good cameras. FACT.
I'm sorry but I think that's a bit dramatic and poor advice.
I wonder if you know that Sony made ALL of Nikon's sensors up to a few years ago? If that's the case, then you're saying up to the D300, that was a piece of crap camera?
The camera is a TOOL and any short comings are not of the tool but the user. I've shot with an A100 before and the images came out great. I've shot with far less cameras and got good images.
To answer the OP's question; Along with the guide BlackSheep posted for you, shoot EVERYTHING you possibly can. Learn how your camera works and functions. Master the camera and you learn more about yourself, your photography skills and shooting styles.
All my point was with that is, albeit Sony have been thre front-runners of the technological feild, I have found that with everything they make, from mp3 players, to TV's and right the way through to their cameras, they lack lu8stre that other manufacturers provide. Their tvs have dull colour, their stereos have flat sound and I find that their cameras give a milky finish to the photographs. Lack-lustre. Their actual technology is fantastic but the final product is always less than expected in my opinion. They have their fingers dipped in way too many pies (as is often the case with global corporations. They have no speciality. This point gives them less credibility. I will ALWAYS advise people AGAINST buying sony because of this. If they were to specialise in one feild, I would buy that product but, because they don't, I won't buy anything from them.
As for the actual equipment to take a good photograph, well, it doesn't really matter so much. The final image is only through the photographers eyes and the idea behind it. The eyes and the mind of the person behind the camera is what is important, NOT the equipment.
Are we at peace?