I have a wordpress multi-author/multisite network. Authors post articles in blog. Registered Users cannot post in blog but may comment on blog posts and may post in forum (simple press). I would like to create an activist page for my site. On this page, registered users could upload a petition (held for moderation). Perhaps a modification of the existing WP Petition plugin? Alternatively, modification of the simple press forum plugin to allow user created petitions as new posts under Petition Topic, with seperate nav menu link? Please respond with proposals and references.