Have you figured out the 'fl' means 'front loop'? You might be able to find a video on youtube by searching for 'front loop dc' or spell out double crochet. Usually in crochet you would put the hook through both loops of the stitch on the previous row, the chain - but for the fl you only putt into the loop that's facing you. There's also some stitches where you would make the stitch in the back loop only.
sue- knitting heretic