This is a combination of the existing index.php, whos_online.php and the Live shop stats contribution. All credit to the authors of the original features
Colours, fonts etc can be changed in the embedded style sheet settings
It has a 30 second delay page refresh so you can leave the admin page open and get live sales and whos online information.
It works on osCommerce 2.2-MS2, I have not tested it on osCommerce Online Merchant v2.2 RC2a
Screen shot included