hmmm if im thinking of the same thing...i used to wear these in 11th grade :)but instead of micro-ing around the outside of my hair, we used to just gel the hair into a ponytail. Let it dry competly. (or if you're hair was short enough you could gel it into a wrap or wrap it as well and put on a wave cap.
Once it was dry, I used to GLUE the tracked micros around my head. You would do it in the direction that it was going. Cut the ends from temple to temple , and if it was falling to the front, then make sure the tracked braids were going towards the front. ONce all of that was done and you reached the Bun, we would pin hair around the bun like a pinned in ponytail.
For me, I normally only keep hair in for about 2 weeks before I HAVE to wash it, but it could last for as long as you Keep it up!