I need software that visually maps out a site heirarchy

[777php]

I have a pretty massive site that I'd like to map out if possible, are they are freeware apps that do this?

I don't care in which element it displays it in but wireframe would be prefferable.

 

[Regs]

Im pretty sure dreamweaver and ms front page does this.

 

[777php]

what toolbar is it under for dreamweaver?