nmap problems

[Diet54 () aol com]

i waited like 5 mins and nothing happened.. tried a few times. how come the 
"nmap -A -T4 scanme.insecure.org" command wontwork. i just tried the command 
you said...
"nmap -vvv -P0 scanme.insecure.org" and got this below. the scan took about 6 
mins. 

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Microsoft Windows XP [Version 5.1.2600]
(C) Copyright 1985-2001 Microsoft Corp.

C:\Documents and Settings\keith>cd C:\nmap

C:\nmap>nmap -vvv -P0 scanme.insecure.org

Starting nmap 3.81 ( http://www.insecure.org/nmap ) at 2005-03-14 07:30 
Eastern
Standard Time
Initiating SYN Stealth Scan against scanme.nmap.org (205.217.153.55) [1663 
ports
] at 07:30
SYN Stealth Scan Timing: About 8.75% done; ETC: 07:36 (0:05:13 remaining)
The SYN Stealth Scan took 335.55s to scan 1663 total ports.
Host scanme.nmap.org (205.217.153.55) appears to be up ... good.
All 1663 scanned ports on scanme.nmap.org (205.217.153.55) are: filtered

Nmap finished: 1 IP address (1 host up) scanned in 341.310 seconds
               Raw packets sent: 3326 (133KB) | Rcvd: 0 (0B)

C:\nmap>

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how come it says all the ports are filted, but yet you got port 80,22,53 as 
open.. grrrr
somethings wrong. do you have windows xp? how many minutes did it take your 
scan to complete? do you know if their some patch you have to install for xp to 
get nmap running. do you know of other people using windows xp that cant get 
it to work? i tired doing the scan with the firewall off, same results. i just 
did a ping to using nmap
"nmap -sP scanme.insecure.org"  is that just a command to do a regular ping.. 
like typing "ping scanme.insecure.org" are they doing the same thing.. just 
sending icmp packets?
here what i get when i do the command above....

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C:\nmap>nmap -sP scanme.insecure.org

Starting nmap 3.81 ( http://www.insecure.org/nmap ) at 2005-03-14 07:54 
Eastern
Standard Time
Note: Host seems down. If it is really up, but blocking our ping probes, try 
-P0

Nmap finished: 1 IP address (0 hosts up) scanned in 7.992 seconds

C:\nmap>
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but if i type do a regular ping on the site i get this..

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C:\Documents and Settings\keith>ping scanme.insecure.org

Pinging scanme.insecure.org [205.217.153.55] with 32 bytes of data:

Reply from 205.217.153.55: bytes=32 time=130ms TTL=47
Reply from 205.217.153.55: bytes=32 time=130ms TTL=47
Reply from 205.217.153.55: bytes=32 time=131ms TTL=47
Reply from 205.217.153.55: bytes=32 time=128ms TTL=47

Ping statistics for 205.217.153.55:
    Packets: Sent = 4, Received = 4, Lost = 0 (0% loss),
Approximate round trip times in milli-seconds:
    Minimum = 128ms, Maximum = 131ms, Average = 129ms

C:\Documents and Settings\keith>
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can you try these same commands and tell me what responses you get back.

thanks for trying to help me out :)