Check out his website it has some general how to information on all types of siding
http://www.remodelingguy.com/siding.htm ....I believe aluminum siding is just hung like vinyl siding so all you need to do is re-attach the section of siding that came loose with basically aluminum roofing nails. Loosely but securely renail the piece or pieces back to thhe side of your house. Hope this helps. good luck to you and let us know how it turned out.