I have made tests on CentOS 5.3 (clean operating system + ISPmanager). I have managed to get to work all the plugins by installing the necessary modules
Code:
yum install perl-XML-LibXML
yum install perl-HTML-Parser
yum install perl-Compress-Zlib
perl -MCPAN -e 'install HTML::Tree'
perl -MCPAN -e 'install LWP::Simple'
And restart ispmanager by
killall ispmgr command
Now all extensions are working.
We apologize for the inconvenience, on CentOS system plugins are not tested (read my previous post), in the next releases all modules will be installed automatically.
P.S. For more verbose info in the server-status also you need uncoment
ExtendedStatus On in the httpd.conf