Emulex HBA updates and "CIM Provider"

hi,

i have 27 esx 4.1 and 5.1 hosts which are spread across poweredge r720s and r710s. i need to update the hba firmware and bios on all these servers as this is a requirement for communicating with the EMC VNX 5700.

ive downloaded and install the emulex ocm plug-in for vcentre but it fails with the following error message:

"Adapter information could not be fetched from the server Cannot proceed further"

i was talking to emulex support who this needs to be corrected by downloading and install the dell "CIM Provider". has anyone had to perform this task?

ciao,

vg