#!/usr/bin/perl -w
use strict;
use lib qw(/home/jzb/lib); # ?? home/jzb/lib/AppConfig.pm ??

# note: make sure that the last
# directory contains the location of 
# AppConfig.pm
# so you might actually need something like

# use lib qw(/home/jzb/lib/perl5/site_perl/5.005);

# uncomment the above line and comment out the 
# line below 'use strict'

eval "use AppConfig";
if ($@) {
   die "Can not find AppConfig.pm.....doh! \n";
} else { print "Found it!!! \n"; }

##</code><code>##

s0ttle:(~)%perl -e 'for(@INC){print $_, "\n";}'
/usr/lib/perl5/5.00503/i386-linux
/usr/lib/perl5/5.00503
/usr/lib/perl5/site_perl/5.005/i386-linux
/usr/lib/perl5/site_perl/5.005
.