Use a product called 'Kids 'N' Pets' -many grocery stores carry it. I've used it on Hi-C fruit punch and it takes it out. You will need to saturate the stain and let it stand for 30-45 minutes before blotting it dry.
I have heard good thigns about the kids and pets stuff, but i havnt tried it yet. Folex is my go to! I use that and oxy and meguairs apc 10:1. So try those and if all else falls you can always go with steve's response and just match the rest of the carpet red haha.
Red Gatorade on the carpent ... I did that in my apartment . I eneded up getting it out (after it set for a few weeks) by soaking it with some generic carpet cleaner and hitting it with a steamjet + brush.