Step 1. Download the Live Chat plugin for Joomla!1.5;
Step 2. Open your Joomla administration panel and click Install/Uninstall from the Extensions drop-down list;
Step 3. Click Choose File to browse for the Live Chat plugin and then click Upload File & Install;
Step 4. Click Module Manager from the Extensions drop-down list and you will find Comm100 Live Chat listed in the module list. Click on Comm100 Live Chat to open the module settings page;
Step 5. Choose the position where you want to place your live chat button, set Module Assignment, enter your live chat Module Parameters (Site Id, Plan Id and Partner Id) and enable the module;
In the Code Type option, please choose Main Code. You can find the Site Id, Plan Id and Partner Id information in your live chat code. For example,
Step 6. Click Apply and click Save and then you can see a chat button show up on your site.