I'm trying to install 11.10 on my computer to dual boot it with windows 7 and when I'm in the try Linux area and try to install Linux off of my liveusb I get to the point where its supposed to ask if i'd like to install it alongside windows 7, but it never shows that option it only shows the options to install over the entire hard drive and the advanced options one ie it never recognizes that I have anything else on my hard drive could someone help me?
Forget all these. Download Wubi and use the iso you already have to install Ubuntu. I dont think you need more than 30GB of installation space.
Here's how to install using Wubi.
Wait for the installation to complete.