servpro

You can try WP Report Post from PA-Scripts here

It’s Free, I have it on my WordPress version (2.6.5) Not sure if it works with 2.7 or not.

Theres another discussion that is similar found here: https://www.ads-software.com/support/topic/221076

Maybe try WP Message https://www.wpmessage.com/

You might be able to customize the way you want.

WP Message has private messages plugin for WordPress 2.7 and previous versions.

https://www.wpmessage.com

Theres a demo to checkout also.

From their site:

WP Message adds the function of private messages to your blog or wordpress site. Allow your users to send private notes to each other or only receive messages from the admin. Easy to use and customize, WP Message is the only user message system available for wordpress!