I figured it out. I am able to add images to the more table using the code below:
UITableView *view = (UITableView *)tabBarController.moreNavigationController.topViewController.view;
if ([[view visibleCells] count] > 0) {
[[[[view visibleCells] objectAtIndex:0] imageView] setImage:[UIImage imageNamed:@"help"]];
[[[[view visibleCells] objectAtIndex:1] imageView] setImage:[UIImage imageNamed:@"camping_tent"]];
}