change my image path

Hey,

I have the image module installed but I am having a problem displaying images. I have uplaod module activated. I upload the images and they go on the server but are not displayed in the node. The Alt text comes up so the path is wrong. The path of the image is:

http://sitename//home/site/public_html/files/images/IMG_0510_0.JPG

of course it should be

http://sitename/files/images/IMG_0510_0.JPG

The later takes em to the iamge. Where do I change the settings to get the image displaying. Thansk for your time.