#define kCellHeight 50 //Replace '50' with Height of your UITableViewCell
#define kSelectedCellBackgroundImage @"nameOfYourImage" //replace value inside "" with name of your image
UIImageView *selectedBackgroundView = [[UIImageView alloc] initWithFrame:CGRectMake(0, 0, 320, kCellHeight)];
[selectedBackgroundView setImage:[UIImage imageNamed:kSelectedCellBackgroundImage]];
[cell setSelectedBackgroundView:selectedBackgroundView];
[selectedBackgroundView release];