That WHOIS site appears to be an ICANN test site, which doesn't seem to access the
real WHOIS database. If you type "nic.biz" or "nic.info" into it, you get the
records for those administrative sites, but other names don't seem to give any response,
including .info names that are known to be assigned already. It seems to be
a test database that was set up before the domain launch began.