I just used a Mega Hoop for the first time with a HV Designer SE. There were 3 positions on the hoop, and the machine told me when I needed to switch positions and which position to switch it to. It was fairly easy to use.
I'm not sure what your CD is. It could be instructional or have information on it to download to your machine for compatibility. It should tell you on the CD or in the manual.
I'm sure you'll like the hoop. It can do really large embroideries. :) Good Luck!