[otrs] Problem install CICS with ITSM

Hi, when we try to install we have a problem with existing ITSm. We use the OPM ERROR: OTRS-CGI-10 Perl: 5.8.8 OS: linux Time: Wed Mar 26 13:29:31 2008 Message: Can't install package, file Kernel/Modules/AgentTicketZoom.pm already used in package ITSMTicket-1.0.2! Traceback (17186): Module: Kernel::System::Package::PackageInstall (v1.65) Line: 552 Module: Kernel::Modules::AdminPackageManager::Run (v1.46) Line: 1083 Module: Kernel::System::Web::InterfaceAgent::Run (v1.22) Line: 670 Module: /opt/otrs/bin/cgi-bin/index.pl (v1.81) Line: 47 How can we avoid this problem ? Thx and best regards Niels