I registered just so I could post.
Here is the file for Mac users and CS5 (the above link is for Windows):
http://hotfile.com/dl/58570246/71a0cbd/CutPlot430MAC.zip.html
Extract the folder and place the entire folder into your Illustrator CS5 plugins folder. Then restart/launch Illustrator and the Cutting Master 2 will be an option in the File menu.