OK, it's fixed and incorporates .com .net .org .info .biz .us .ca .edu domains now
Also, now you can search for fixed-number character domains (eg 3-char, 4-char etc)
Don't forget, the demo site is using a static database and so all the domains will have expired in 3-5 days... if you want the script for yourself, it's $50 with free installation, free support, and free updates
Demo Site