Forum required

I have the domain [login to view URL] I would like people in my town, Oswestry, to be able to write stuff about their experiences and grievances on a public website. It would be best in the form of a forum. The website will need a home page explaining what it is for with links to the forum. I'm guessing all the threads will be best on one page but I'm open to suggestions. I expect poeple will be moaning about matters such as council decisions, police and their performance (or lack of it), Shops and a variety of other things. It would be nice if there could be a section for news stories that local newspapers won't carry. I will need the ability to remove posts and/ or edit them. It would be nice to have a swear word blocker, as used by gaming websites amoung others. i would like some space left for advertising on the home page and be left with the ability to upload different adverts (in the form of jpegs) myself and to delete them as and when I need to. Other suggestions are also welcome...!