Downloading and Installing .rbz files

[garystan]

Hi everybody :

    I've been trying to install a downloaded .rbz file. I first downloaded it to my DOWNLOADS folder.  The (within Sketchup 8) clicked on PREFERENCES>EXTENSIONS > LOCATE EXTENSION.  
    When I do a search outside of Sketchup, I see it in the DOWNLOADS folder. But, from  within Sketchup the place where I know I placed doesn't appear.  
    And, I followed the directions EXACTLY. 
    There's got to be a work-around for the instructions I saw in the Forum.

                                                                garystan