Building your custom theme with the JQUERY THEME ROLLER is very easy and fast. This tool is a state of the art style builder used by thousand of websites. You’ll need to have access to your website to upload the files.
It is recomended that you pick one existing theme and edit it instead of creating one from scratch. Navigate to JQuery Theme Roller, click the gallery tab, choose one of the theme to use it as a starting point, and then click the “Roll your own” tab.