Windows 2000 Pro dual boot

I have a Dell Latitude D610 laptop with XP Pro SP3 installed. My hard drive has about 80GB of free space on it. I have bought a Windows 2000 Pro SP2 program on ebay. Can I dual boot between the two? I installed another one of these programs on an older laptop (Latitude C640) with no problems, that I dual boot two Linux distros on a much smaller drive (40GB). It took only about an hour and a half to complete all updates for this OS, as there are no more updates to install, unless a security update is issued. I know that XP Pro is better, but want a second Windows option. My laptop is too old to upgrade for Vista or Windows 7. Any advice would be greatly appreciated.

 

You mean it's not like Linux, which has a boot loader for dual boot? On my older laptop, I have Win 2K, Linux Mint and Ubuntu 9.04 all on a 40GB drive and they work seamlessly. What do I need to do, install a GRUB bootloader, or would that work with Windows? The other problem I have is that Win XP Pro is already installed, but all I have is a reinstallation disc, not a full copy of Windows. It already is starting to look like more trouble than it's worth. But I thank you for your advice and letting me know this. I guess that's why you have to load Windows before Linux, to have a bootloader. Another reason to switch, a billionaire corporation like Microsoft lets the competition have one on them. They let a upstart company (Mozilla) beat them in the browser wars. Firefox 3.5.3 tears up IE8. A company staffed mostly by volunteers and funded mostly by donations is putting to shame a billionaire corporation. No wonder Linux is gaining popularity. Appreciate it, dude.