The pattern --
Cast on 45 stitches with two tail method (note if this cast-on is new to you, please watch the free video at http://www.fiberartshop.com/knclbg.htm
Row 1 (waist ribbing): *K2, P1* repeat from * to * (last stitch of row will be purl).
Row 2 (waist ribbing): *K1, P2* repeat from * to * (last two stitches of row will be purl).
Rows 3 through 8 (waist ribbing): alternate rows 1 and 2 above
Row 9 knit across
Row 10 purl across
Row 11 knit across, then add one stitch at the end of the row (increase one stitch total this row).
Row 12 purl across
Row 13 knit across
Row 14 purl across, then add one stitch at the end of the row (increase one stitch total this row).
Repeat rows 9 through 14 until you have 58 total stitches on your needle.
Continue in stockinette (alternate knit and purl rows) until you have approximately 68 rows, or until garment measures 9 inches in total height.