Wonder Can this be done

a friend of mine wants to enter information to her wordpress page,a form people will fill when he confirms it will appear on the blog page.

They just need to go to the page that just lists the individual post. The form is already at the bottom of that page.

what i meant was there will be a comment like form where people will submit their services and after approving it it will appear on the page.On top there will be A-Z letter when they click on it will take them to that section.i was wondering if there is any plugin that does that.