[Lionel]

yeah! I replaced $option with $trashoption and that fixed it

plugin: Edit Template (showthread)

if ($threadinfo['forumid'] != $vbulletin->options['vbtrash_forumid'] AND (is_member_of($vbulletin->userinfo, explode(',', $vbulletin->options['vbtrash_usergroups'])) OR ($vbulletin->options['vbtrash_modallow'] == 1 AND can_moderate($foruminfo['forumid'], '', $vbulletin->userinfo['userid']))))
{
$trashoption = '<div><label for="ao_vbt"><input type="radio" name="do" id="ao_vbt" value="trash" />' . $vbphrase[vbtrash_movet] . '</label></div>';
$vbulletin->templatecache['SHOWTHREAD'] = str_replace(
'$vbphrase[remove_redirects]</label></div>',
'$vbphrase[remove_redirects]</label></div>$trashoption',
$vbulletin->templatecache['SHOWTHREAD']
);
}