Cloth animation problem!!

I am having problems with the cloth simulator. I have got the cloth animated and it looks good but it goes through everything is there any way to stop that and if their is could you help me with this here is a picture of the problem

http://img264.imageshack.us/img264/2986/angelclothproblem0yu.th.jpg

Hello!

Do you use the “cloth simulator” or “softbodies”? we need more information and maybe a screenshot of your panel settings!