Hyperic 5.8 don't see vCenter 5.1

Hi guys.

   Recently, I installed a Hyperic 5.8. So, i want add my vCenter infrastructure to hyperic inventory, but apparently I'm doing something wrong, because i can't see vcenter in hyperic's resource tab.

   vCenter parameters:

   vCenter 5.1.

   VirtualCenter.VimApiUrl:  https://vcenter-prod.mydomain.local:443/sdk

   Hyperic Parameters

   vCenter URL: https://vcenter-prod.mydomain.local:443/sdk (i tried with https://vcenter-prod.mydomain.local/sdk, without 443 port, and nothing happens)

   vCenter user: admin (i tried with system-domain\admin, and nothing happens).

  Passwd: admin user password.

  I restarded hyperic server many times and nothing. I try to install vsphere plugin from solutionsexchange, but hyperic don't show plugin  . 

   Do I need add another parameter in any place?

Greetings