...then I also need to know how to dec1 st at neck edge every other row 3 times. Please help! Thanks
Check out the the basic techniques tab on the top of the page. There are videos for different types of decreases. And under the "...and more!" link there are videos showing different kinds of ways to join yarn.
And then knit 2 together at the neck edge every other row. Usually on the knit side. So you would dec, purl a row, dec on the knit row, purl a row, dec, purl a row.