Index: wp-admin/network/users.php
===================================================================
--- wp-admin/network/users.php	(revision 22774)
+++ wp-admin/network/users.php	(working copy)
@@ -231,14 +231,38 @@
 	'id'      => 'overview',
 	'title'   => __('Overview'),
 	'content' =>
-		'<p>' . __('This table shows all users across the network and the sites to which they are assigned.') . '</p>' .
-		'<p>' . __('Hover over any user on the list to make the edit links appear. The Edit link on the left will take you to his or her Edit User profile page; the Edit link on the right by any site name goes to an Edit Site screen for that site.') . '</p>' .
-		'<p>' . __('You can also go to the user&#8217;s profile page by clicking on the individual username.') . '</p>' .
-		'<p>' . __('You can sort the table by clicking on any of the bold headings and switch between list and excerpt views by using the icons in the upper right.') . '</p>' .
-		'<p>' . __('The bulk action will permanently delete selected users, or mark/unmark those selected as spam. Spam users will have posts removed and will be unable to sign up again with the same email addresses.') . '</p>' .
+		'<p>' . __('This table shows all users across the network and the sites to which they are assigned. As roles are defined per-site, they are not listed here, however Super Admins will be marked in the username field.') . '</p>' .
+		'<p>' . __('To add a new user for your network, click the Add New button at the top of the screen.') . '</p>' .
 		'<p>' . __('You can make an existing user an additional super admin by going to the Edit User profile page and checking the box to grant that privilege.') . '</p>'
+	) ) ;
+
+get_current_screen()->add_help_tab( array(
+	'id'      => 'screen-display',
+	'title'   => __('Screen Display'),
+	'content' => '<p>' . __('You can customize the display of this screen in a number of ways:') . '</p>' .
+					'<ul>' .
+					'<li>' . __('You can hide/display columns based on your needs and decide how many users to list per screen using the Screen Options tab.') . '</li>' .
+					'<li>' . __('You can sort users by username, name, email, or registration date.') . '</li>' .
+					'<li>' . __('You can visit any site the user is a member of by clicking on the site name under the Sites column.') . '</li>' .
+					'</ul>'
 ) );
 
+get_current_screen()->add_help_tab( array(
+	'id'      => 'actions',
+	'title'   => __('Actions'),
+	'content' => '<p>' . __('Hovering over a row in the users list will display action links that allow you to manage users. You can perform the following actions:') . '</p>' .
+					'<ul>' .
+					'<li>' . __('Edit under the username takes you to the editable profile screen for that user. You can also reach that screen by clicking on the username.') . '</li>' .
+					'<li>' . __('Edit beside any site name goes to an Edit Site screen for that site.') . '</li>' .
+					'<li>' . __('View beside any site name goes that site. If the view link has a red background, the site is deactivated or marked as spam.') . '</li>' .
+					'</ul>' .
+				'<p>' . __('Checking the box by a username will allow you to use the following bulk actions:') . '</p>' .
+					'<ul>' .
+					'<li>' . __('Delete will permanently delete selected users from the network.') . '</li>' .
+					'<li>' . __('Mark as Spam will remove all posts by the selected users and they will be unable to sign up again with the same email addresses.') . '</li>' .
+					'<li>' . __('Not Spam will unmark the selected users as spammers and restore their roles.') . '</li>' .
+					'</ul>'
+) );
+
 get_current_screen()->set_help_sidebar(
 	'<p><strong>' . __('For more information:') . '</strong></p>' .
 	'<p>' . __('<a href="http://codex.wordpress.org/Network_Admin_Users_Screen" target="_blank">Documentation on Network Users</a>') . '</p>' .