mmm... might I add one bug that might occur from this example? What happens if the person has a last name containing spaces? I know a couple of people on this planet with last names like that... So I made one small adjustment to your code. I used a split() with a limit of 2:

#!/usr/bin/perl -w
use strict;

my $i = 1;
my %list;

open TEST, 'test.txt' || die "Couldn't open it";
print "\nFile Opened\n\n\n";
while(<TEST>){
    chomp;
    my ($f, $l) = split(' ', $_, 2);     
    print "$i : $l\,$f\n";
    $list{$i} = [$f,$l];
    $i += 1;
}

foreach my $c (sort keys %list) {
    print "$list{$c}->[1],$list{$c}->[0]$/";
}

close TEST;
print "\n\n\nFile Closed\n";
[download]

Also, may I ask why $list{$c}->[1],$list{$c}->[0] and $list{$c}[1],$list{$c}[0] are not really the same thing?
Is it because without the dereferencing arrows, it is not "technically correct" code?
I have never used the arrows and my code has always worked fine!