"Infinispan Cache Manager" option doesn't show up in the drop down menu for "Manually add" function

infinispan 4.2.0.CR2
RHQ version: 3.0.0 build number: 59e9341
postgresql 8.4.5

I've setup RHQ with infinispan-jopr-plugin as described here:
http://community.jboss.org/wiki/MonitoringInfinispanwithRHQ

I'm running this on my local machine having these virtual interfaces
192.168.10.101 test1
192.168.10.102 test2
192.168.10.103 test3
192.168.10.104 test4
192.168.10.105 test5
192.168.10.106 test6

test1 - test4 running jboss 5.1.0.GA with infinispan-gridfs-webdav demo (ran with -Dcom.sun.management.jmxremote.port=6991 to 9664 respectively)
test1 - test2 running rhq-agent bound to respective interface
test5 running rhq-server

sucessfully installed RHQ server
sucessfully installed agents test1 test2
sucessfully imported platforms test1 and test2
sucessfully installed infinispan-jopr-plugin, updated agents

tried to manually add Infinispan Cache Manager according to the instructions:

"To add Infinispan instances manually, go to Resources > Platforms > localhost and then click on Inventory. At the bottom of the page, there's a section that says "Manually Add" and next to it there's a drop down list. Open this list, select "Infinispan Cache Manager" and click Ok."

but the option "Infinispan Cache Manager" doesn't appear in the drop down box.

i don't know wheter this is a RHQ bug or plugin bug or wheter there's something wrong with my installation steps.