Heh
In case it's still relevant:
First, you should know some of the basic poker stats and their meanings:
http://www.pokerlistings.com/strategy/beginner/seven-key-poker-stats-explained
Of course, there are a lot more stats than that, and you can look at the elephant documentation on this site for more of these.
The numbers you are seeing are the HUD - Heads Up Display.
It shows different stats from your elephant database on each of the players at your table/s.
Generally, the more hands you play with each opponent, the more accurate the stats will be.
these will help you make better decisions at the table.
you can always change the HUD layout by looking at the HUD settings in Elephant.
But first you should read and learn about the basic stats:)
Hope that helps a bit.