I am very dummy to Magento. In My app\design\frontend folder I have the following folders:
My initial thought was that, since I have configured magento to user the MyCustomerTemplate, all the other folders will be ignored ALWAYS.
However, it seems like sometimes magento look into the base folder and displays results according to the base folder files.
For example, I was trying to edit the popup.phtml for Order tracking, and the file wasn't exist in MyCustomTemplate folder, but I was able to find it in the base folder. and after editing the file I could see the changes are taking place in the magento front end.
My question are:
How can I know when magento uses the file in CustomTemplate and when uses the base folder?
Can other folders like "default" or "rwd" be possibly used?