For most boxes, copying the code from the box page, pasting the code into the Boxes Admin Tool (A.11), and saving a new box, is sufficient to install the box. It can then be used in the same way as most boxes included with Scoop, that is, inserting |BOX,boxname| into a block at the appropriate place.
Relatively simple boxes such as these require no more, and if they do they usually say so in the comments inside the perl code of the box itself.