STEP 1. Make sure zipper is closed, and if you're using a stove, this is the time to open the flue portal. Stretch the Tipi out so that a door faces the wind.
Drive a 10 inch peg through BOTH anchor loops of the door. 

STEP 2. Stretch the Tipi out completely from this point and pull it quite snug.

STEP 3. From this point,  measure back the specified amount  (you can us a 10 inch peg for measuring).
SETBACK LENGTHS (in inches)
4 Person: 32 in.  (3.2 peg lengths
8 Person: 54 in. (5.4 peg lengths)
12 Person: 50 in. (5 peg lengths)

STEP 4. Drive a 10 inch peg through BOTH loops of the back door at the setback (again, make sure the zippers are completely zipped).

STEP 5. Stretch out one of the center sides 'til snug and peg lightly. Pull out the other side  'til taught, begin your setback measurements. 
Centers are marked with yellow tabs.

STEP 6. Measure back toward the center of the tipi, and stake this anchor with a 10 inch peg.
SETBACK LENGTHS (in inches)
4 Person: 7 in.  (.75 peg lengths)
8 Person: 13 in. (1.33 peg lengths)
12 Person: 10 in. (1 peg length)

STEP 7. Pole Assembly.  Slide the lower pole into bottom of center sleeve and affix at the shortest (last) position. Unzip your door without unpegging it, and enter.  
  Seat the pole into the black cone at the top of your Tipi (making sure to avoid the clothesline). 

STEP 8. Raise the whole tent by pushing upard on the pole as you swingit into the center. You may need a flat rock or a peg on it's side to prevent pole from sinking into soggy ground. Press the spring clip of the top pole, and raise it to the locator hole or until tipi fabric is taut.