Front End Posting Plugin Needed

First, my website is http://www.swanprops.com

Secondly, I have installed several plugins. I have 1 plugin that allows user to sign up for membership. A second plugin that allows me to control what those that have signed up can do.

I allow new users to become “Authors” so that they are able to create their own post and list rental property.

I do not want for everyone to see the admin site. I already have a lot of people coming to the website, but I am wanting to make it as simple as possible. So I need a plugin that will allow me to make it so that people can post on the front end.

Here are some plugins I have already tried.

Post from Site– Not sure if it is a compatibility issue, but won’t show the link for the front end posting

Front End Editor-doesn’t allow the functionality that I need.
ST Insert Post-lack of functionality
ST Insert Post-doesn’t allow pictures

What needs to be allowed in a post.
1.)Subject
2.)Body
3.)Upload Pictures
4.)Edit Categories (would be nice but not necessity)

Thanks in advance for the help.