Esx server side script for XYmon???

list Dns
Mon, 8 Sep 2014 11:01:12 -0700
Message-Id: <user-a2db76b76274@xymon.invalid>

Hi All,
 
I've a question: I'm using bb-ESXi.pl (from Xymon Monitor for Vmware ESXi) script to monitor our ESXi, It's work fine but one thing i'm missing on this script is that the "uptime" column don't have any data filled. Can anyone explain this to me or help to get this work? My xymon version is 4.3.17. 
 
 
Many thanks...
 
DNS