|If all else fails you might consider trying to polish out the scratches. A google search will show you how. I have repaired a couple of CDs this way.|
Roxio only replaces retail boxed versions. You probably can't get a replacement since I have the feeling it is a OEM type of software.
BTW, I have MGI Photosuite 3 SE also. I think I got it with my scanner. I also have Photosuite 4 but liked version 3 better.