IPhone question: how to add a button to a tableview cell?

Little background, the table view is populated with a fetchedResultsController element that populates the table view with rows. Now I am trying to add a button next to every row in every cell of the tableview. So far I have tried to create a button in my configureCell: atIndexPath method and then add that button as a subview to the table cell content view, but for some reason the buttons are not showing. Below is the relevant code. If anyone wants to add more code, just ask and I'll put in whatever I want. Any help is appreciated.

- (void)configureCell:(UITableViewCell *)cell atIndexPath:(NSIndexPath *)indexPath {

// get object that has the string that will be put in the table cell
 Task *task = [fetchedResultsController objectAtIndexPath:indexPath];

 //make button
 UIButton *button = [[UIButton buttonWithType:UIButtonTypeRoundedRect] retain];
 [button setTitle:@"Check" forState:UIControlStateNormal];
 [button setTitle:@"Checked" forState:UIControlStateHighlighted];

 //set the table cell text equal to the object property
 cell.textLabel.text = [task taskName];

 //addbutton as a subview
 [cell.contentView addSubview:button];
 }

- (UITableViewCell *)tableView:(UITableView *)tableView cellForRowAtIndexPath:(NSIndexPath *)indexPath {

 static NSString *CellIdentifier = @"Cell";

    UITableViewCell *cell = [tableView dequeueReusableCellWithIdentifier:CellIdentifier];
    if (cell == nil) {
        cell = [[[UITableViewCell alloc] initWithStyle:UITableViewCellStyleDefault reuseIdentifier:CellIdentifier] autorelease];
    }

 // Configure the cell.
 [self configureCell:cell atIndexPath:indexPath];
    return cell;
}