Here's a good link for making a hat:
BTW - In the 2 posts I see here I don't think you mentioned whether you're doing the hat on circular or straight needles. I just wanted to remind you that knitting every row on straight needles creates a garter stitch, but knitting every round on circulars will create stockinette. So if you are knitting on straights in stockinette you would knit the decrease row and purl the next row, etc.
ETA: BTW - the link says to knit 2 rows even between decrease rows. I would knit 1 row even between decreases as Suzeeq suggests. But that's my preference.