What does this mean?

[QuadzillaXXX]

I'm looking at a website of NCAA matchups and was wondering if someone could tell me what this means.
it says "Value index comparison to las vegas line:"
then it has:

Auburn: value index rating: 67
South Carolina: value index rating: 56

The next column is Value Index
Auburn: line -7.0
S. Car: Edge 7.0

I know this is probably a rookie question but I figured I'd learn somewhere.

Thanks for the help,
Zilla

[Greenery]

The number(s) represent a Power Rating for each team-there are various formulas-in this case, there is a 11 point differential here and the spread is 13.5 last i checked, so there is a slight edge to S.Carolina in this game according to these ratings.

[QuadzillaXXX]

thanks