Problem with Media uploader

Hi.

I am using the Bokeh Theme and recently changed the domain of my block from an sub domain to a normal one.
Everything works fine except the Media uploader.
Also the previously uploaded images are working fine on the page.

Here are some screenshots:
Screenshot 1
Screenshot 2
Screenshot 3

The problems are the following:
-When i try to upload files, it creates an empty library entry (as shown in screenshot 1 and 2), but there is no file uploaded to the ftp.
-When i view uploaded images from before the domain change, they are just those tiny thumbnails (shown in screenshot 3) and note the usual large image.

I already tried a few things to fix it:
-set the file upload url manually to the usual directory (../wp-content/uploads). Tried this in the database and also in the wp-config file.
-Deleted and reuploaded (from a fresh wordpress download) the wp-admin and wp-includes folders
-updated all the plugins
-deactivated all the plugins
-change the theme
-searched the database for the old url and found 8993 entries in the wp_posts table (most (8670 out the 8993) of them have the post_title “Media”, post_status “private”, comment_status “closed”, post_name “media-1” (then media-2 and so on), the guid “(..).com/?option-tree=media-1”, post_parent “0”, post_type “option-tree” and comment_count “0”)

Some help would really be appreciated!

Thanks in Advance.