I'm not sure what you're describing, but here in the U.S. simply go to any good farm supply store and ask for electric fencing posts. They're about 3/8 of an inch in diameter and about 3 to 4 feet in length. They have a wedge attached to the bottom end that you simply step on to place into the ground. The nice thing is you can simply "weave" them into the netting as you go along, eliminating tying them to the posts. I'd suggest about every 6 feet or so. They're inexpensive... about $1.25 U.S. here.
Best of luck!