You must be blind, look in bottom of every post. The thing in the white window was just for you to see where to see the link.
But here it is:
http://forum.mikrotik.com/t/tool-using-splunk-to-analyse-mikrotik-logs-3-3-graphing-everything/121810/1
Do you see the word Splunk in color red at the bottom of the message? Link is just blow it.