I don't know that you can use it with a laptop.
The MK II connects via a firewire connection to the pci 324 card in your computer, which will not work with your laptop.
You also will probably not find Windows 7 drivers since the MK II came out in 2000 and has drivers up through XP.
I understand though that you can manually install the XP drivers in Win 7 by placing the XP MotuAW.inf and MotuAW.sys files in a folder together and then using the device manager; click on properties for the audio device, choose update driver, select manual installation and direct the OS to the folder with those two drivers.