To install:

Upload all files to your host environment.
Create database the run SQL document.
Change database connection settings within config.php document.
Update domain string within config.php file.

Within your browser open /admin/

Default login:
U: admin@localhost.com
P: pass

To activate the bot send a request to the -twitter_cron.php- file.

You're in!

With this system you can:
Send tweets from any number of accounts.
Created any number of tweet queues then assign search terms to them.
Search terms will be used to send a user a mention with the randomly selected tweet from the queue.

When your twitter user is mentioned in a reply or retweet that information is also gathered.

Reports can be downloaded in PDF or CSV format.

Used libraries:

PEAR + MDB2 FPDF jQuery + jQuery UI Twitter Class by: Tijs Verkoyen - http://classes.verkoyen.eu/twitter/

Originally developed back in 2009 then tweaked and modified until around early 2011.