I am having a laptop - lp1 (XP Home) which is wirelessly connected to the
internet through a router, I have another laptop -lp2 (2K Pro , this does not
have wireless card) I need this one also to connect to the internet through
lp2 using a crossover cable

Any inputs highly appreciated, how to go about configuring

You can setup Internet connection sharing (ICS). this how to may help,

How to setup Windows ICS In addition, the ICS host provides DHCP to ICS clients. Client computers are protected ... Only the computer running ICS is seen from the public side. ...
      www.howtonetworking.com/Windows/ics.htm 


Bob Lin, MS-MVP, MCSE & CNE
Networking, Internet, Routing, VPN Troubleshooting on http://www.ChicagoTech.net
How to Setup Windows, Network, VPN & Remote Access on http://www.HowToNetworking.com
  I am having a laptop - lp1 (XP Home) which is wirelessly connected to the
  internet through a router, I have another laptop -lp2 (2K Pro , this does not
  have wireless card) I need this one also to connect to the internet through
  lp2 using a crossover cable

  Any inputs highly appreciated, how to go about configuring

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