If you want to turn on Template Path Hints in your magento front than follow the following easy steps:

- using Template Path Hints you can easily identify your .phtml file where you need to change. path hints show you direct file path from which file the particular file is coming, so you can easily change what ever you want to change in file. If you are new to magento Template Path Hints will helps you a lot.

Step 1: System >> Configuration >> Developer

your current configuration scope is set to “Default Config.” You cannot setup Magento Template Path Hints globally. You’ll need to set the Configuration Scope to a website or store configuration. When you do, you’ll see a screen like this:

Change Template Path Hints no to yes and save the configuration. Reload your front page.

You can enable Template Path Hints in your magento admin panel as well. Follow this post if you want to enable it.