To change settings of your theme, by just flicking a switch you need to get to the
Administration -> Configuration -> Current theme options.
From there you can change any settings that you like.
You can use FTP to exchange files between your computer and your server using a FTP client such as FileZilla. To install our themes, you don't need to access FTP.
You will need to upload rank images using a FTP to the ./Themes/themeName/images folder. From there go into the administration center and type in the name of the rank image.