After going through the procedures in that link, the final result looks like this..

GRC Port Authority Report created on UTC: 2006-09-29 at 19:30:58

Results from scan of ports: 0-1055

3 Ports Open
1053 Ports Closed
0 Ports Stealth
---------------------
1056 Ports Tested

NO PORTS were found to be STEALTH.

Ports found to be OPEN were: 21, 23, 80

Other than what is listed above, all ports are CLOSED.

TruStealth: FAILED - NOT all tested ports were STEALTH,
- NO unsolicited packets were received,
- A PING REPLY (ICMP Echo) WAS RECEIVED.