In order to use the module positions, you will have to add some lines to your template manually.

Do so by editing the fllowing file:
/temaplates/<your-template>/templateDetails.xml

find something like this:

<positions>
<position>left</position>
<position>right</position>
<position>top</position>

And insert the following lines

<position>yoflash_befor_header</position>
<position>yoflash_befor_game</position>
<position>yoflash_after_game</position>
<position>yoflash_after_tabs</position>
<position>yoflash_after_similar</position>

If you still use the com_mochigames component, the fields are called  mochi_xxx instead of yoflash_xxx.

This will add five new positions in the mocule manager. In there you can add any module you want, like your favourite social-bookmark-mod or an adervitsing-mod or anything you want.