The code in the ratepic.php which determines the browser seems as if there was a little confusion.
$browser = 'Unknown';
if(eregi("MSIE",$browser)) {
if(eregi("MSIE 5.5",$browser)) {
$browser = "Microsoft Internet Explorer 5.5";
} else if(eregi("MSIE 6.0",$browser)) {
$browser = "Microsoft Internet Explorer 6.0";
}
} else if(eregi("Mozilla Firebird",$browser)) {
$browser = "Mozilla Firebird";
} else if(eregi("netscape",$browser)) {
$browser = "Netscape";
}
Because if $browser was set to "Unknown" at the beginning you can't look for much more strings in it. (Which means the browser is always "Unknown")
I fixed the "little problem" and also added a few more browsers and OSs.
$os = "Unknown";
if(eregi("Linux",$_SERVER["HTTP_USER_AGENT"])) $os = "Linux";
else if(eregi("Windows NT 5.0",$_SERVER["HTTP_USER_AGENT"])) $os = "Windows 2000";
else if(eregi("Windows NT 5.1|Windows NT 5.2",$_SERVER["HTTP_USER_AGENT"])) $os = "Windows XP";
else if(eregi("Windows NT 6.0",$_SERVER["HTTP_USER_AGENT"])) $os = "Windows Vista";
else if(eregi("win98|Windows 98",$_SERVER["HTTP_USER_AGENT"])) $os = "Windows 98";
$browser = 'Unknown';
if(eregi("MSIE",$_SERVER["HTTP_USER_AGENT"])) {
if(eregi("MSIE 5.5",$_SERVER["HTTP_USER_AGENT"])) $browser = "Microsoft Internet Explorer 5.5";
else if(eregi("MSIE 6.0",$_SERVER["HTTP_USER_AGENT"])) $browser = "Microsoft Internet Explorer 6.0";
else if(eregi("MSIE 7.0",$_SERVER["HTTP_USER_AGENT"])) $browser = "Microsoft Internet Explorer 7.0";
}
else if(eregi("Mozilla Firebird",$_SERVER["HTTP_USER_AGENT"])) $browser = "Mozilla Firebird";
else if(eregi("Netscape",$_SERVER["HTTP_USER_AGENT"])) $browser = "Netscape";
//else if(eregi("Gecko" , $_SERVER["HTTP_USER_AGENT"])) $browser = 'Mozilla';
else if(eregi("Firefox" , $_SERVER["HTTP_USER_AGENT"])) $browser = 'Mozilla Firefox';
else if(eregi("Netscape" , $_SERVER["HTTP_USER_AGENT"])) $browser = 'Netscape';
else if(eregi("Opera" , $_SERVER["HTTP_USER_AGENT"])) $browser = 'Opera';
else if(eregi("AppleWebKit" , $_SERVER["HTTP_USER_AGENT"])) $browser = 'AppleWebKit';
else if(eregi("KHTML" , $_SERVER["HTTP_USER_AGENT"])) $browser = 'Konqueror';
hope that was helpful