Hey Bob. The stuff you bought isnt too bad, your scores though, like Joey mentions you are definitely missing some key basic things.
http://wgt.com/forums/t/559.aspx good putting guide
http://wgt.com/forums/p/7840/49253.aspx pitching and chipping
And of course, practice and more practice.
This isnt a game anyone walks into and masters it in a week, thank god. That would bore the sh*t out of almost all of us here, just like if real golf was too easy who would bother?
There are lots of little tricks to learn here and the more you learn, the more you realize how realistic the game is, and no others compare in that regard. As a golfer, I wouldnt dream of going anywhere else to play and yes I tried plenty others past and present.
Happy hitting.