Open includes/languages/english/CUSTOM/header.php
CUSTOM being whatever the name of your custom template is.
Find this line:
Code:
define('HEADER_SALES_TEXT', '<h1>Sales Message Goes Here</h1>');
Add your 2nd line:
Code:
define('HEADER_SALES_TEXT', '<h1>Sales Message Goes Here</h1><span>Second line of Tagline!</span>');
Then open your includes/templates/CUSTOM/stylesheet.css and add something like this right below the original #tagline code:
Code:
#tagline span {
color: #ff0000;
text-align: center;
}
Hope this helps.