The Drag-and-drop ordering question is said to be compatible with Moodle 2.0 but when I try to install it, Moodle kicks out this:

Debug info: Plugin is not compatible with Moodle 2.x or later.
Stack trace:

• line 294 of /lib/upgradelib.php: plugin_defective_exception thrown
• line 1352 of /lib/upgradelib.php: call to upgrade_plugins()
• line 290 of /admin/index.php: call to upgrade_noncore()

So I guess it needs some modfications...