The Origami Forum

Hi I've startd the spider by Manuel Sirgo but I'm stuck at step 6 as I don't understand what it's trying to get me to do to get to step 7. Here's the link to the instructions:
http://www.pajarita.biz/aep/nacionales/espa15-1.pdf

this is a different model but basically the same foldig process:
http://www.youtube.com/watch?v=MB-5LMgkMQk