connect the side stays,
stick bottom end of mast in gooseneck thingy on the transome so mast is pointing towards back of boat.
have one person lift mast from top bit and walk towards front bit of boat.
after it gets over 45 deg other person pulls on front stay.
once mast is verticle connect front stay to cross wire things connected to nose of hulls.
oh, forgot, make sure you get your halyards working before errecting mast and put a float on the top.

edit** one more thing, don't forget to attach a wrighting rope under the tramps and wear you life jacket. better take some flares also.