Very easy setup. No SQL. Uses a logical, simple flatfile system. User-user mail. Guest view and/or post, or visitors view only or registered users only. Email notification, stickies, banning, languages, skins, search (posts and members). Secure admin access with full editing options. Full user profile editing. Last post, view last, number of posts, number of views... etc. Most of the usual forum features. Check it out.