Okay, so I've downloaded this same version several times now, and others.

Still, this is the one that seems to be the one I want to install Ubuntu.

So I've got a disk image, ergo, I don't need to download another.
However, do I just stick it on the C drive?
With the past versions, I've always gone to the 'try' ubuntu style, and the install doesn't work (my computer freezes) despite my own iso or the UNB download.

What's going on?

EDIT: The download seems to download the program itself and not any installer - is this right?

((BTW: my system seems to crash even when using a CD, but only when I have Windows as my OS... tried various cds))