IPTV stalker is no longer supported. You can use Stalker Client NFPS and use your donation code for username/password. Read this,
http://iptvtalk.net/showthread.php?12568-IPTV-Username-amp-Password-Authentication&p=100039#post100039
People are being charged for very an inferior product at the moment. Limited HD, freezing, no PPV and compressed american SD channels . They should have made sure the system was working optimally before charging for this service. Just my opinion.