Author's bio

I all, i’m using this theme for my blog and i like it a lot but there’s a problem: it desn’t show Autthos’s bio.
There’s a way to do it? Because i leek at all optios and no way till now.
BTW i’ve found that fill width for pages is “guestbook” so maybe author’s bio should be called Nebraska 😀
Blog link: http://mmoaddict.altervista.org/ (it’s in italian)
Thanks in advance for your help.