Media Library on main site issue...no images!

I am not able to upload images in to my main blog on multi-site. Uploader works but shows no files in media library.

I do see them in at
wp-content>uploads>etc.

However they used to be in the wp-content>blog.dir>1>files>etc.

I have noticed a few files there but they don't show up in media library.

This after a re-install of multi-site.