First I would like to state that the instructions as stated are fine. They are the same instructions that have been on this web site for at least 4 years that I'm aware of. As for stating that you can only "unzip" a zip file is true, what they are stating is to take the contents (xml, ddr, ect.) of the container (zip) and place them in the appropriate directory. In other words you don't say unbox the box of dishes and put them away, you would simply say unbox the dishes and put them away. The is a very common speaking convention in the English language.
Have a nice day.
