Here is the Amplify Joomla 1.5 User Stats Module!
The Amplify User Stats Module allows you to publish your user statistics on the frontend of your Joomla! site pages.
Choose to show any or all of the following: Your Latest Member, Total Membership, Currently Online, Registered Today,Registered this Week, Registered this Month.
Easily add your own custom text in front of the module statistic.
Download: Joomla 1.5 Version