Need help setting up undergravel filter.

[Australia7]

Today I purchased the Hagen ClearFlow Undergravel filter (30cm x 60 cm) and I would like to know how to set it up properly. The product didn't come with any particular instructions and I don't really know how to go about setting the undergravel filter up.
I would be very thankful is someone could please provide me with some help or a link where i can find set-up instructions.

Thanks in advance.

 

[Toirtis]

Filter plate rests on the bottom, gravel goes on top. The clear uplift tubes attaech to the filter plates on either end of the aquarium (in the corners), the air hose attaches to the small airtubes (with the other ends going to your airpump). Alternatively you can power the filter with a powerhead on top of each uplift tube (gives you better filtration, but is a bit expensive).

A somewhat helpful link:

http://www.firsttankguide.net/ugf.php