if your holding it by hand and the pic's are blurry.. then get a mini tripod... a 6 inch one costs about 5 to 10 bucks.. (make sure there is a screw hole in the bottome of the camera to take one.. (most have it).. and put it on the timer set up your shot.. press the button and wait hands off... in macro mode its almost impossible to take close ups without a tripod..
also the best light is natural sunlight..... and be sure to turn the flash off.. th flash distorts the colors and puts glare on the model....
in the Features section under general modeling there is a Photography and the web section with several articles to help with taking photo's..
here is one of the articles that has the basics..
Digital Camera Introduction good luck...