So after chiming in on the side discussion, I actually tried to figure out your problem. Unfortunately, I can't reproduce it, so I wonder if something else is at fault:

1) poerbook:~/projects/disorganized/support% perl perlmonks-poco-rssaggregator.perl
getting http://wfmu.org/listen.m3u?show=21788&archive=32709 ...
content: http://archive.wfmu.org:5555/archive/NU/nu070117.mp3

1) poerbook:~/projects/disorganized/support% cat perlmonks-poco-rssaggregator.perl
my $url = "http://wfmu.org/listen.m3u?show=21788&archive=32709";
use LWP::Simple;
print "getting $url ...\n";
my $content = LWP::Simple::get($url);
die "Problem!" unless defined $content;
print "content: $content\n";
use POE qw(Component::RSSAggregator);  # bad line
1) poerbook:~/projects/disorganized/support% perl -v

This is perl, v5.8.8 built for darwin-thread-multi-2level

Copyright 1987-2006, Larry Wall

Perl may be copied only under the terms of either the Artistic License or the
GNU General Public License, which may be found in the Perl 5 source kit.

Complete documentation for Perl, including FAQ lists, should be found on
this system using "man perl" or "perldoc perl".  If you have access to the
Internet, point your browser at http://www.perl.org/, the Perl Home Page.

1) poerbook:~/projects/disorganized/support% uname -a
Darwin poerbook.local 8.8.0 Darwin Kernel Version 8.8.0: Fri Sep  8 17:18:57 PDT 2006; root:xnu-792.12.6.obj~1/RELEASE_PPC Power Macintosh powerpc