Hi,
I recently installed Ubuntu according to the instructions on the site. However, now when I start up my computer I see Ubuntu, Ubuntu recover (something like that), two windows 7's, and windows vista. Before I installed Ubuntu I only had windows 7. How can I clean it up so that I only see Ubuntu and Windows 7?

ps. If you couldn't tell, I am a beginner so try not to use to much linux jargon, or better yet, explain it to me.