Livery installation

I know this sort of question is a favourite of those who don't read the documentation carefully. So first, excellent aircraft, great flight model (the basic essential), I am open minded about using the CDU for simulator setups, the HGS is worth the price alone, and details such as contact points are carefully optimised. So the naive question. I have looked for an explanation but missed it, of how to transfer a livery file, the .ptp into the livery manager. Please friends treat me kindly, and just give me the link to the instructions. In Australia this afternoon, probably early in the dark a.m. in the USA, the download was faster than I had expected (over 500kb/s), uninterrupted and uncorrupted.