We have gotten past this issue and have Luminis 5.3 installed and running in our test environment.
I am a total rookie when it comes to sys admin stuff. I am trying to upgrade to Luminis 5.3/LMG 4.1.1 and I am at the point where you execute the lp5_mqinit.sh script. However it fails with the error "Unable to connect to the server xxxxxxx.xxxxx.edu on port 4444." I do not see any instructions / commands etc for the openDS stuff. Am I missing something or am I making this more difficult that was it should be?