After you've run the program and examined the text output, you'll want to see the plots.  
The program outputs three files:  ratings.pov, point_spread.pov, and gold.pov.  These 
are all text files that contain programming code in a language that is understood by the 
freeware POV-Ray image creation software package.  You can get POV-Ray at www.povray.org 
and then once installed, you should be able to double-click on a *.pov file to load it 
up in the POV-Ray program - at least that's how it works on a Mac, I don't know about 
other operating systems.  

Once in the POV-Ray program, select "render" from one of the pull-down menus and you will 
get an image.  By exploring the pulldowns you can figure out how to change the image size 
or how to create an animation from the image.  The gold.pov and point_spread.pov files 
both have animations, but the ratings.pov file does not.  

So what are the plots about?  Well, the ratings plot shows the history of the rating of 
each team throughout the database.  It can be customized to show all of the teams or just 
a few specific teams, and it has a funky "opponent_ratings" feature that you will probably 
never need.  The point spread plot shows you a visualization of point-spread space and 
also the gaussian index.  Finally, the gold plot is a humorous but useful plot of the 
profit history of pretend bets made by the program.  

The plots can be adjusted to show different data, and the control for that is at the very 
beginning of the program in the following lines: 

$range = 40;                        # +/- size of the gaussian plot
$resolution = 1;                    # smallest size of triangle to draw
$plot_vertical_bars = 0;            # plot the vertical bars in the point spread graph, 0 = no, 1 = yes
$plot_spiders = 1;                  # plot nearest neighbor lines, 0 = no, 1 = yes
$plot_opponent_ratings = 0;         # plot line to opponent's ratings on ratings plot, 0 = no, 1 = yes
$plot_gaussian = 1;                 # plot the gaussian distributions, 0 = no, 1 = yes

# specify which teams to draw on ratings plot, null list for all teams
# note that bet games that are being predicted will be added to the plot
@draw_lines = qw(all);              # plot all teams on ratings plot
#@draw_lines = qw(NCAR NCST DUKE);                  # plot prediction bet games, or all games if no prediction bet games

Let's take a look at these controls one at a time.

$range = 40;                        # +/- size of the gaussian plot
This determines the +/- size of the plotting field.  Unfortunately it is not properly 
implemented so don't change it.  I know, I know, a proper program should be fully 
scaleable and stuff like that, look to a later release to get this fixed.  

$resolution = 1;                    # smallest size of triangle to draw
The resolution is how finely shaped the gaussian index ploto is, and should be left at 1.  

$plot_vertical_bars = 0;            # plot the vertical bars in the point spread graph, 0 = no, 1 = yes
Set this to 1 if you want to see the vertical bars on the point spread plot.  

$plot_spiders = 1;                  # plot nearest neighbor lines, 0 = no, 1 = yes
Set to 1 to see nearest neighbor connectivity.  

$plot_opponent_ratings = 0;         # plot line to opponent's ratings on ratings plot, 0 = no, 1 = yes
This feature draws a line to the opponents rating at each game on the point spread plot.  
It is only marginally useful and i suggest you leave it at 0.  

$plot_gaussian = 1;                 # plot the gaussian distributions, 0 = no, 1 = yes
1 draws a fancy gaussian plot, 0 reverts to standard point spread plot.  Both are 
useful and interesting.  

# specify which teams to draw on ratings plot, null list for all teams
# note that bet games that are being predicted will be added to the plot
@draw_lines = qw(all);              # plot all teams on ratings plot
Use this line if you want to see all teams plotted in the ratings plot

#@draw_lines = qw(NCAR NCST DUKE);                  # plot prediction bet games, or all games if no prediction bet games
Do something like the above to see just a few specific teams.