I have written another module for JCow.It is shoutbox.

The Shoutbox module provides a block where visitors can quickly post short messages.

• Post messages instantly via AJAX
• Optionally have messages auto-refresh via AJAX
• A cron option allows the administrator to have old shouts deleted.[not implemented yet]

Let me know if you have any issues.

JCow Shoutbox

How to setup:

1. Download the Modules shoutbox.

2.  Copy and paste the modules to the directory modules/shoutbox

3. Go to Admin CP and Install shoubox module

4. Then edit dashboard script from modules/dashboard.php and put the following code in the index() function

//after this code
block(
friends_birthday()
);

//Add this Code

include_once ‘modules/shoutbox/shoutbox.php’;

$sb=new shoutbox();
block(
$sb->shout_box()
);