What am I doing wrong?

I have been trying to knit this horse finger puppet. After I get past the stockinette stitch for the first 12 rows, all goes wrong. I don’t understand what I’m doing wrong. This is the part that gets me…the part that says form the nose. I keep getting holes from the slip stitches and it looks nothing like the picture at the end. Am I not slipping the stitch correctly or am I missing a step?
This is the webpage if it helps any.

[B]Make the Horse

[/B]With brown yarn, cast on 15 stitches. Work 12 rows in stockinette stitch.

[I][B]Form the Nose[/B]
[/I]Beginning on right side of work, knit 10, [turn work, slip 1, purl 4, turn, slip 1, knit 4] 3 times. Knit 5. Work 5 more rows in stockinette stitch.
please help! THANKS SO MUCH!!!

Slipping a st is just moving it from one needle to another; it will be elongated, but shouldn’t leave a hole.