You can buy a multitude of exercise equipment, fitness videos and gather plenty of advice on how to great looking abs.
You could do a search and come up with so much information on those sexy abs you so desire.
Abdominal muscles together with other muscles are core muscles. This core is a powerful section of your body. When working on other body parts, and strengthening your core, your abdominal's are being worked.
Try a total body work out first then use your toning exercises that are geared towards you abs.
Abdominal's follow suit when getting buffed. Work your abs during everything you do and the results will be amazing as you lose weight and build muscle.