"Multiple content blocks" plugin


Not sure if this question applies here, please direct me if I'm off.

(Is it ok to ask questions here about ANY plugin or wp-related question?)

I want to add several content blocks to a page, in this case a 3 column front page, with one content block for each column.

To achieve this, I have installed this plugin:
I have added "the_block" to the template but it doesn't work.

I'm wondering
1. Is this plugin compatible with wp 3.5?
2. How do I implement this plugin?
Instructions are very poor on the plugin dev page.
3. Are there any alternatives out there you would recommend?