I took a look at chromatic's program from 2000. Great code to start from.

I updated the code to process the current www.powerball.com winnums-text.txt file, after you've saved it to disk and stripped the one header line, and deleted draws before 08/31/2005 (the last modification to the game).
Also, my mod'd version of your program -
1) analyzes powerball and white balls separately,
2) determines a list of "cold" low count balls, "mid" middle count balls, and "hot" high count balls, and
3) does not report the Power Pick (or multiplier).

I will continue to tweek it until it is acceptable to me, and I'll probably post it to a new page here on Perl Monks with the same attribution currently in the code when my verison is to the point that it can --
1) use GET to access the current file, and
2) ignore the first header line while processing(will have to change the foreach to a while, I think... I know I've done this before on another Perl project).

Anyway, here's my copy after working for a few mins updating a couple of things and changing the reported numbers slightly ...

My current listing follows (I hope) --

#!/usr/bin/perl -w

# originally from http://www.perlmonks.org/
#  Powerball Frequency Analyzer
#   by chromatic (Bishop)
# originally based upon old pbhist.txt
# updated to current history 
# also run current "winnums-text.txt" format with no header line
#             with draws since last rule change in 2005/08/31 
# 
use strict;
use warnings;
use LWP::Simple;

my (@numbers, %normals, %powerb, %powers);

my $content;

#### bns - updated the link to the draw file
## unless (defined ($content = get('http://www.powerball.com/results/p
+bhist.txt'))) {
##    die "Cannot get PB history.\n";
## }

## unless (defined ($content = get('http://www.powerball.com/powerball
+/winnums-text.txt'))) {
##     die "Cannot get PB history.\n";
## }

unless (defined ($content = get('file:///J:/DivX/current-game-winnums-
+text.txt'))) {
    die "Cannot get PB history.\n";
}

@numbers = split /\n/, $content;

my @data;

foreach my $line (@numbers) {
    next if ($line =~ /^!/);
    @data = split(/\s/, $line);
    shift @data;        # throw away the date

    $powers{pop @data}++;
    
    pop @data;

    $powerb{pop @data}++;

    foreach (@data) {
        $normals{$_}++;
    }
}

print "Normal (White Ball) Pick Rate:\n\n";

my @norm_sort = sort { $normals{$a} <=> $normals{$b} } keys %normals;

foreach (@norm_sort) {
    print "$_ :\t($normals{$_})\t", "*" x $normals{$_}, "\n";
}

print "PowerBall Normal Pick Rate:\n\n";

my @pb_sort = sort { $powerb{$a} <=> $powerb{$b} } keys %powerb;

foreach (@pb_sort) {
    print "$_ :\t($powerb{$_})\t", "*" x $powerb{$_}, "\n";
}

print "\nPower Pick Rate:\n\n";

my @pp_sort = sort { $powers{$a} <=> $powers{$b} } keys %powers;

foreach (@pp_sort) {
    print "$_ :\t($powers{$_})\t", "*" x $powers{$_}, "\n";
}

print "\nWhite Balls --";
print "\n Cold Picks:\t";

print join(" ", @norm_sort[0 .. 4]), "\n";

print " Mid Picks:\t";

print join(" ", @norm_sort[25 .. 29]), "\n";

print " Hot Picks:\t";

print join(" ", @norm_sort[50 .. 54]), "\n";

print "\nPowerBalls --";
print "\n Cold Picks:\t";

print join(" ", sort (@pb_sort[0 .. 2])), "\n";

print " Mid Pick:\t";

print join(" ", sort (@pb_sort[19 .. 21])), "\n";

print " Hot Picks:\t";

print join(" ", sort (@pb_sort[39 .. 41])), "\n";

## print "\nPower Picks:\t";

## print join(" ", sort (@pp_sort[0 .. 3])), "\n";

print "\nDisclaimer:\n\tThis is not statistically accurate, except in 
+that the drawings are
guaranteed.\nThis is just a quick frequency analysis making no pretens
+es as to predictive
accuracy.\n";
[download]