Alan you are correct the IR port & sleep indicator are on the right hand side of the front of the system as you can see in this picture taken directly from Apples' web site when the system is in use:
What I think has confused you here is how you open and service the system is done from the bottom so the you have to flip the system over. Which in that context would have the IR port & sleep indicator on the LEFT side with the systems front edge facing you. To help see this look at the pictures if the pictures were flipped over by mistake you couldn't read the text on the battery.
The pictures are correct.