There are lots of places you can get help with Joomla!. In many places in your site administrator you will see the help icon. Click on this for more information about the options and functions of items on your screen. Other places to get help are:
Here is the pop up panel you can use to promote of any product or service that you think your customers should see at the very bottom of the website. You can use 6 different modules positions between intro-1 and intro-6.