[SOLVED] Dynamic Content Gallery

Hello

I'm trying to use Dynamic Content Gallery with my Atahualpa 3.5.3 based website: http://www.gloucestershiresymphony.org.uk/.

I've tried using the instructions, but I think I'm missing a step.

Please could someone let me know:
1) What code I need to put in the template.
2) Which template to put it in (Centre Column Under the Loop or index.php after get_header(); ?>)?
3) Where to put the image files?
4) What code (if any) I need to put in the page to display the Gallery?

Thank you.