I'm a bit of a beginner with SilverStripe, I'm afraid, so bear with me if this is a dumb question.
I am designing a site in which there is just a main horizontal navigation menu and the content is arranged in a 3-column layout below. Each column may have one or more content blocks arranged vertically one above the other. These blocks contain a title, possibly an image, text and maybe other content.
I have designed a layout based on xhtml and css with divs to define the columns and blocks. What I can't quite grasp is how I translate this to Silverstripe so that I can create, say, 1 long block in column 1 and 2 blocks in columns 2 and 3.
There is a mock-up at this url that hopefully shows a rough idea of what I am trying to achieve (the actual content blocks are empty in this image at the moment):
Does Silverstripe have the concept of a sub-page that I could define as having a title, image, content and so on?