Apache v2 Help (newbie)

I'm trying to install Apache Web Server on XP/2000 (two different
computers). The error says:

"C:\Program Files\Apache Group\Apache2\bin>apache
(OS 10048)Only one usage of each socket address (protocol/network
address/port)
is normally permitted. : make_sock: could not bind to address
0.0.0.0:80
no listening sockets available, shutting down
Unable to open logs"

Like many others who have had the same errors, I've tried switching
the Listen to different numbers: 8000, 8080, etc. I've gone to the DOS
prompt and typed in NETSTAT -ANO (somebody told me to do that for XP
specifically b/c it shows the IP and Port no. as well as PID). I'm a
newbie at this so I don't really know what I'm looking for much less
know what a PID is (apparently for PID, I'm suppose to go to CTRL
Panel->Admin->Services and shutdown the PID using Port 80 ?????)

Anyway, I have no clue on how to do that. Am I using IIS? and how do I
go about shutting that down? Somebody also said that McAfee may affect
how Apache is running so I should shut it down. I did and it still
doesn't work.

On the other computer which has 2000 Pro on it, the first thing I
installed was MySQL, then Apache. MySQL works fine, but I get the same
error as I did with XP.

Can anyone provide newbie step by step instructions on how I should go
about configuring Apache to work on XP or 2000?

Should I just change the 2000 Pro OS to Linux and use that computer/OS
as a server (I've never used linux before).

I'm just trying to get my feet wet with servers and such. Thanks.

Goto:
Start -> settings -> controlepanel -> add/remove programms
The click add/remove windows components
The UNcheck Internet information server(IIS)
and click ok, then reboot.
IF you have a firewall disable it and see if it works.