Edit: cp2.php

Find:

error($lang['textthemeimportfail'], FALSE);

Replace With:

error($lang['textthemeimportfail'], false, '</td></tr></table></td></tr></table><br />');

Find:

error($lang['theme_already_exists'], false, '</td></tr></table></td></tr></table>');

Replace With:

error($lang['theme_already_exists'], false, '</td></tr></table></td></tr></table><br />');

Find:

        echo '<tr bgcolor="'.$altbg2.'" class="ctrtablerow"><td>';
        if (!$query) {
            echo $lang['textthemeimportfail'];
        } else {
            echo $lang['textthemeimportsuccess'];
        }
        echo '</td></tr>';
		
Replace With:

        if (!$query) {
			error($lang['textthemeimportfail'], false, '</td></tr></table></td></tr></table><br />');
        } else {
            echo '<tr bgcolor="'.$altbg2.'" class="ctrtablerow"><td>'.$lang['textthemeimportsuccess'].'</td></tr>';
        }
		
Find:

error($lang['delete_all_themes'], false, '</td></tr></table></td></tr></table>');

Replace With:

error($lang['delete_all_themes'], false, '</td></tr></table></td></tr></table><br />');