Hello,
Just install Windows Server 2003 from a USB flash drive. I've installed Windows Server 2003 R2 Standard Edition successfully on a laptop myself, using the following guide:
EEEguides.com: Install Windows XP on the Asus Eee PC
There are several guides out there and different ways of doing it, but I've found this guide to be the easiest to follow.
Note: This guide is for installing Windows XP onto
any computer using a USB flash drive or USB hard drive. Installing Windows Server 2003 also works.
Also, you'll need a USB flash drive or USB hard drive with at least 1GB capacity.