If you want to remote control it, you have to use PC Anywhere, VNC, or some similar program.
References :

Windows XP Professional
Windows Server 2003
Windows 2000 Server
Windows 2000 Advanced Server
Windows 2000 Datacenter Server
Windows NT Server 4.0, Terminal Server Edition

Also be careful not to confuse Remote Desktop or Terminal Services (Remote Desktop is a form of Terminal Services for XP Pro) with Remote Access. Remote Access has to do with setting up a VPN that remote users can dial into to get access the to local network at the office.

The best way I know of to accomplish what you want is to use VNC. VNC stands for Virtual Network Computing and is designed from the ground up for one platform (ie Mac) to remotely control another computer of a different platform (ie Windows 2000 Pro).

The following links are to different Mac VNC clients:

Chicken of the VNC:
http://sourceforge.net/projects/cotvnc/

VNCDimension:
http://www.mdimension.com/page/VNCDimension?appNum=1&wosid=tMdCG7ccnut52cRX2IgtVM

VNCThing:
http://www.redstonesoftware.com/Download/VNCThing2.2.sit

Any one of the above should help you control a Windows 2000 machine.

If you want to do the reverse, control a Mac with a Windows machine then you need a Mac VNC server. This is the only one I know of for Mac:

http://www.redstonesoftware.com/vnc.html

For Windows I always use TightVNC which includes both a client and a server:

http://www.tightvnc.com/download.html

You’ll want to set up your Windows machine as the VNC server and basic instructions on how to do this are here:

http://www.tightvnc.com/winst.html
References :

Instead of that, try using one of the many flavors of VNC. I’m partial to TightVNC, which is open source and free:

http://www.tightvnc.com/

There are VNC clients for Mac as well. Google ‘em up.
References :