Problem setting featured images

When I try to set a featured image for a listing
the following blank page appears when I click on insert image into post:
http://crossroadenterprises.net/wp-admin/media-upload.php?type=image&tab=library&post_id=7

The image uploads to the media library but I am not returned to the listing page when I click on insert image into post and the image does not appear in the listing. I am logged is as administrator with all privileges checked.