Unrelated suggestion ... You use the following construction several times:

$ftp->cwd($directory) or $newerr=1; 
push @ERRORS, "Can't cd  $!\n" if $newerr;
myerr() if $newerr;
$ftp->quit if $newerr;
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This does not clearly show you're trying to do, and distracts the viewer. An alternative might be:

if ( !$ftp->cwd($directory) )
{
    push @ERRORS, "Can't cd  $!\n";
    myerr();
    $ftp->quit;
}
[download]

Or, similarly

$ftp->cwd($directory) or ReportError( "Can't cd" );
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where ReportError is a sub that takes the error-string as an argument, and does the push, the myerr, and the quit.