Your problem's not with push, it's in your for loop.

When you use something like foreach (@thescore) each element of @thescore is placed into the "default" variable, $_, unless you tell it different.

So, something like

foreach (@thescore) {
  print $_, "\n";
}
[download]

would work for what you have above.

If you specifically wanted to assign the data to, for example, the $score variable, you can do this by specifying the variable when you define the loop:

foreach my $score (@thescore) {
  print $score, "\n";
}
[download]

Hope that helps a little.
-- Foxcub