That's quite complicated for a beginner. Not to say you shouldn't go for it - I made a scarf, a baby blanket, and then jumped in with a cardigan and cabled fingerless gloves.
Most of the abbreviations and stitches are demonstrated in the movies here - they're great!
The multiple of 14+1 means to start out your project with any number of stitches that can be divided by 14, and then add one. So you can cast on 15 or 29, or 43.
Although, reading that pattern.... I can't follow it. I'm not a lace fan, and haven't tried it yet, but I can't even make the numbers come out right.