Allow user to post and edit from the front end

Part 1: I have a function that adds a new metabox to the 'new post' area in the Wordpress backend. This new metabox contains 3 fields: minfo, duedate and priority. This works perfectly well in the backend, but I now need users to be able to post from the front end. The form in the front end is on a category page ([login to view URL]), so when the form is submitted it needs to create a post with: - the title - minfo - duedate - priority - and the current category Part 2: The posts that are created can be viewed from the front end ([login to view URL]) and the user will also need to be able to edit: - the title - minfo - duedate - priority Note that the category can't be changed here, and that's fine. I will be able to provide full access to my working Wordpress installation so you can see what's happening and what needs to be done.