remove media library tab

[zenessa]

Hi
I have opened up my blog to guest posting and am trying to set up contributor profiles and permissions and a dashboard with limited access.

So far I have achieved a limited dashboard using Adminimize
And have allowed the contributor role to upload files via the plugin capability manager

I would now like to hide the media library tab in the flash uploader, but cannot get this to work.

I found the following code listed on several tutorial sites that is supposed to go in the functions.php file to remove the media library tab

PHP Code:

function remove_medialibrary_tab($tabs) {
unset($tabs['library']);
return $tabs;
}
if(!current_user_can('edit_others_posts')) add_filter('media_upload_tabs','remove_medialibrary_tab'); 


I tried that yet it made no difference. I am using “lifestyle” theme, could this mean I need to put the code somewhere else or try a completely different method.

thanks for any help

Vanessa