New Mac user/Airport Extreme

[Watrat]

Good evening,
	I am not sure if I am posting this in the right forum, but thought I 
should start here.  I am a week into being a converted mac person and am 
still in the "taking baby steps" process and am lost.  Here is what I am 
doing and whats happening and could use any and all advice.
	I have a Windows XP desktop and a 12 inch powerbook with an airport 
extreme card.  The XP machine is plugged into the LAN port of the airport 
extreme base station, the WAN port has my cable modem, and the powerbook 
connects wirelessly.  Both machines connect to the internet and the range 
is better than I imagined.  I have a program on my windows machine called 
ISPQ which is a video chat program..I can send messages and not receive 
them, which is normal with a router.  I followed their instructions for the 
airport and added port mapping for ports 2000-2003.  Still, nothing.  I 
have this setup in port mapping as they instructed:

Public Port                Private IP Address                     Private Port
2000                            10.0.1.201                                 2000
2001                             10.0.1.201 
  2001
2002                              10.0.1.201                               2002
2003                              10.0.1.201 
2003

my Router is 10.0.1.1
my powerbook is 10.0.1.2
my pc is10.0.1.3

	I would also love to be able to get music files off of my pc into itunes 
and am not sure if thats why the ispq program isn't working...because I 
don't have a home network setup to share files...doing that is a whole 
other burden at this point.
	I would greatly appreciate any help.  Thanks very much

Tom