sewing: Blanket or Invisible

[Kaylee Chenille]

I am making thisblanket and it's all finished and ready to put together. Now.. how do I do these stitches. I watched Amy's (wonderful, as always) video on Matress stitches but I was sure that while it's tagged as making an invisible seam, it's not what I want.

How do I start, work, and end either a blanket or invisible stitich, and what do I use to do the stitching?[/url]