Have you tried any of the video tutorials that are around for cubase?
If not, take a look at groove3.com or macprovideo.com, both usually have a couple of videos from a tutorial available to watch for free to see if you like them.
Also, there are plenty of useful video’s on youtube, some better than others i have to say but there’s still plenty of information out there.
Then when you have seen some relevant tutorials you can come back onto the forums if theres still something that you need help with.