Here is where I will tell you about all the different positions there are in Ballet. Point is another type of Ballet. But we'll just stick with the basics... I'll tell you positions First through Fifth.

This is First Position. As you get better, your toes will spread farther appart.
This is Second. Make sure not to pull your legs to far appart.They should be about shoulder width.
This is Third. Your heel should connect to th arch of your foot.
Fourth is where your heel should be in front of your toes. But they are not connecting.
Fifth is exactly like Fourth except your heel does connect with your toe.