아이프레임이 안됩니다,  q/a
/lib/common.lib.php을수정하시면 됩니다.

function bad_tag_convert($code)
{
    return preg_replace("/\<([\/]?)(script|iframe)([^\>]*)\>/i", "<$1$2$3>", $code);
}

예))
function bad_tag_convert($code)
{
    return $code;
}
---------------------------------------------------------------------------------------
스트립트가 안됩니다  q/a
/lib/common.lib.php을수정하시면 됩니다.(주석처리)

// XSS (Cross Site Script) 막기
        // 완벽한 XSS 방지는 없다.
        // 081022 : CSRF 방지
        //$content = preg_replace("/(on)(abort|blur|change|click|dblclick|dragdrop|error|focus|keydown|keypress|keyup|load|mousedown|mousemove|mouseout|mouseover|mouseup|mouseenter|mouseleave|move|reset|resize|select|submit|unload)/i", "$1<!-- XSS Filter -->$2", $content);
        //$content = preg_replace("/(on)([^\=]+)/i", "on$2", $content);
        $content = preg_replace("/(on)([a-z]+)([^a-z]*)(\=)/i", "on$2$3$4", $content);
        $content = preg_replace("/(dy)(nsrc)/i", "dy$2", $content);
        $content = preg_replace("/(lo)(wsrc)/i", "lo$2", $content);
        $content = preg_replace("/(sc)(ript)/i", "sc$2", $content);
        $content = preg_replace("/(ex)(pression)/i", "ex$2", $content);
       
        $content = preg_replace("/\#/", "#", $content);
        $content = preg_replace("/\</", "<", $content);
        $content = preg_replace("/\>/", ">", $content);
        $content = preg_replace("/\(/", "(", $content);
        $content = preg_replace("/\)/", ")", $content);

예))
   /*
        // XSS (Cross Site Script) 막기
        // 완벽한 XSS 방지는 없다.
        // 081022 : CSRF 방지
        //$content = preg_replace("/(on)(abort|blur|change|click|dblclick|dragdrop|error|focus|keydown|keypress|keyup|load|mousedown|mousemove|mouseout|mouseover|mouseup|mouseenter|mouseleave|move|reset|resize|select|submit|unload)/i", "$1<!-- XSS Filter -->$2", $content);
        //$content = preg_replace("/(on)([^\=]+)/i", "on$2", $content);
        $content = preg_replace("/(on)([a-z]+)([^a-z]*)(\=)/i", "on$2$3$4", $content);
        $content = preg_replace("/(dy)(nsrc)/i", "dy$2", $content);
        $content = preg_replace("/(lo)(wsrc)/i", "lo$2", $content);
        $content = preg_replace("/(sc)(ript)/i", "sc$2", $content);
        $content = preg_replace("/(ex)(pression)/i", "ex$2", $content);
       
        $content = preg_replace("/\#/", "#", $content);
        $content = preg_replace("/\</", "<", $content);
        $content = preg_replace("/\>/", ">", $content);
        $content = preg_replace("/\(/", "(", $content);
        $content = preg_replace("/\)/", ")", $content);
        */

알려주신분 곱슬최씨님