Here is a small program that "requires" a list of modules and prints their versions. It only works for modules that have $VERSION defined:

    #!/usr/bin/perl -w

    use strict;

    my @modules = qw(
                      File::Copy
                      File::Find
                      File::Foo
                      File::Spec
                      File::Temp
                    );


    for my $module (@modules) {

        my $version;
        eval "require $module";

        if (not $@) {
            $version = $module->VERSION;
            $version = '(unknown)' if not defined $version;
        }
        else {
            $version = '(not installed)';
        }

        print $module, "\t", $version, "\n";
    }

    __END__
    Prints:

    File::Copy  2.03
    File::Find  (unknown)
    File::Foo   (not installed)
    File::Spec  0.82
    File::Temp  0.12
[download]

In your example you should check the $@ variable, see perlvar, after using eval to see if there was as error:

    print "Eval error: ", $@ if $@;
[download]

--
John.