Archive & Install option

I thought I would be like everyone else and do a simple upgrade to leopard. As like many other people in the mac world, I was faced with the ugly "blue" screen after
a so-called successful install.
my question is this: "does doing a "archive & install" keep all of my existing files like my photo's,email,music? Or does it erase it?
Once I got leopard I was sooooooo excited and didn't think about backing up.

Thanks guys,

Jeremy

In short, yes it does keep them. The different install options, including Archive and Install have already been defined in the FAQ. Please consult it.