Here's more information on RIS and how to use it.
http://www.labmice.net/Windows2000/install/RIS.htm
Here's the basic concept howerver. First and foremost, if you don't have a floppy or CD Rom, you have to make sure you can actually boot from your NIC. It's also knows as PXE compatible. Look in your laptop's bios, if you can setup your NIC as one of the devices in the boot order, chances are your internal NIC is PXE compatible and will work with RIS.
Anyways, back to basic concept.
Setup a Win2000 server, install and configure active directory. (basic install is fine)
You also have to configure DHCP and DNS. After all that's done, install the RIS services, you can do that through the add/remove programs section in the control pannel, and then select components. You'll need a win 2000 professional CD to create a BASE image. To manage the RIS services from the 2000 server, go to users and computers, select the RIS box, and hit the properties, you'll see options on managing the images and such.
It takes a bit of research, not to mention a win2000 server box, but it's well worth the work. I use my RIS box all the time here at work. It's like having a version of ghost that can work on almost any hardware configuration. The more you read up on it, the more you'll like what you find. It used to take me 6 hours to build out a box and install and configure all of our company software. Now all I do it hook up the box to RIS and in about 1 hour without any user interaction I've got a fully built and configured box ready to deploy. I've been working with RIS for some time too, so if you have any questions, that those whitepapers can't answer, contact me directly and I'll hook you up.
Dan
dutrizacd@hotmail.com