Remove graphics from admin

Hi, love the plugin! I want to reduce the space used in the admin so I can see more of the files and downloads on one page. Is it possible to remove or reduce the size of the graphics or show/not show the file url as then I could see 2/3x the number of files in the admin so I can see at a glance which has had the most downloads.

http://wordpress.org/extend/plugins/download-manager/