She described how to do the double inc which is the kpk into one stitch, and it's similar to the kfb on the Increase page, but not quite the same, you don't need to work in the back leg.
Knit into the st as usual but leave it on the L needle. Bring the yarn to the front and purl into it, the move yarn to the back and knit into it again. It may be easier for you to k yo k into the stitch, it looks the same - knit in the st, wrap the yarn around the needle and knit into it agai. Instead of a hole like a regular YO, it looks like a purl stitch.
sue- knitting heretic