Whats a good application to map the hierarchical structure of a website and maybe get some google analytic action going on?

Powermapper is pretty expensive and the trial version didnt seem particularly good at importing google analytics CSV files as advertised. In fact, out of the 1000 pages mapped, exactly 0 were successfully imported.

I dont really need all the features Powermapper offers anyway, so the price tag is a bit much. All I really need is like, a simple visual representation of my (automatically generated) site structure (like a hierarchical site structure) and the ability to integrate my google analytic stats (page views mostly) with it.