Updating Mailscanner

[technical coordinator]

Hello,
 
Yesterday afternoon I updated my Mailscanner.  It failed. With the error below.  I had to take the mailscanner back to a previous version to get it to work.  I want to update to the newest version but I can't with this error.  Can someone tell me what is happening?  Is Archive/zip.pm missing from my download?
 

Dale
 

MailScanner:                                      [FAILED]
         incoming sendmail:                                [  OK  ]
         outgoing sendmail:                                [  OK  ]
Starting MailScanner daemons:
         incoming sendmail:                                [  OK  ]
         outgoing sendmail:                                [  OK  ]
         MailScanner:       Can't locate Archive/Zip.pm in @INC (@INC contains:
/usr/lib/MailScanner /usr/lib/perl5/5.8.0/i386-linux-thread-multi /usr/lib/perl5/5.8.0 /usr/lib/perl5/site_perl/5.8.0/i386-linux-thread-multi /usr/lib/perl5/site_perl/5.8.0 /usr/lib/perl5/site_perl /usr/lib/perl5/vendor_perl/5.8.0/i386-linux-thread-multi /usr/lib/perl5/vendor_perl/5.8.0 /usr/lib/perl5/vendor_perl /usr/lib/perl5/5.8.0/i386-linux-thread-multi /usr/lib/perl5/5.8.0 . /usr/lib/MailScanner) at /usr/lib/MailScanner/MailScanner/Message.pm line 46.
BEGIN failed--compilation aborted at /usr/lib/MailScanner/MailScanner/Message.pm line 46.
Compilation failed in require at /usr/sbin/MailScanner line 52.
BEGIN failed--compilation aborted at /usr/sbin/MailScanner line 52.