The software is already in designer. You need to go to the help/manage licenses/ then follow the instructions. The registration number is printed on the back flap of the CD with the probe. Don't reload the CD as it may be an old version of designer. If it is...you can reupdate to 126 (I know, I did it).
When you purchase a pattern off CW, you follow the same steps.
The instructions are on the CD pouch
I just remembered...take out the nice felt tray in the box and the CD should be there.
Steve
It's all about the XYZ baby!