If it's the same ornament wreath I think it is you can find directions online (google ornament wreath). I am not sure if we can post links or not so I don't dare post one in case it's against the rules.
In a nutshell though you take a coat hanger and open it up, shape it into a circle. Then just put the ornaments on the wreath until they don't fit anymore. Keep an eye on it as you're loading the ornaments so you get a "design" that you like etc. When the coat hanger is full close it back up at the top and you're done.
I bought a bunch of ornaments last year at the dollar store so this was a really inexpensive project (I already had coat hangers) and it went over really well with folks.