Are you looking for larger logos to get the right colors or just updated images?
Anyway, you can go to this site:
http://aol.sportingnews.com/ncaa-football/standings
Right click on the logo, then change the URL from "small" to "large" or "medium" for the variety of sizes.
The small is 25x25, medium is 45x45 and large is 90x90. Not sure if this is what you are looking for.
In addition - for the helmets, there is a number, which corresponds to each team in the URL.
For Florida State it's 3 - on the Sporting News site. If you change the 45 in your link to a 3, it will pull up the FSU helmet. I think you would just have to go thru and figure out the numbers for each team though - or at least the ones you need to update.
http://i.sportingnews.com/ncaa_football ... 0_away.png
http://i.sportingnews.com/ncaa_football ... 0_away.png