how do i use the array thingy to make them all go in a circle?

I put in a circle thing and said to follow it. it did not.
how do I do this?

The array modifier isn’t the most intuitive. When you want is possible by using an object offset. Create an empty and then in your array modifier check object offset and select your empty. Now rotate and move your empty and see what happens.

2.49 had a better one
I just moved the centre and rotated it 30 degrees each time

If you want people to help you, you’re going to need to give more information than “I made a thingy and told it to do stuff. Stuff didn’t happen.” Show us the effect you’re trying to accomplish, or at least take a second to describe it. Then show us the result you got and the settings you used. Preferably a .blend file. Don’t make us guess what you’re trying to do and what you’ve tried already.