sc cord for a celtic knot coaster...

[mommom]

I found a crochet pattern for celtic knot coasters in Crochet! Magazine that is really pretty. It's an experienced skill level pattern and I'm really having a problem getting the cord done. I think I may have bitten off than I can chew with this one. I can't find a video that shows how to do this cord. I've found other style cord videos but not this one. Anyone have any ideas?