Hopefully this makes sense.  I didn't do screen captures because I didn't have time to. But if you need me too, I can do some up later this evening.

Pose Room

1.  Load Figure
2.  Zero Pose
3.  IK Off
4.  Drop to Floor
5.  Load clothing
6.  Conform clothing to figure

7.  MOve animation slider to frame 15
8.  Pose figure
9.  Move slider back to frame 1

Cloth Room
(1. Cloth Simulation)

10.  New Simulation
11.  New Pop up Window:
              - Simulation Name:  Sim_1
              - Start Frame = 1
              - End Frame = 30
              - Septs per Frame = default
              - Additional Cloth Collision Options:
                          - Check mark next to "Cloth Self-Collision"
                          - Cloth Draping = 0
                          - OK

12    Preview window: 
             - Make sure the dress is selected 
            - Make sure the hip of the dress is selected

(2. Cloth)
13.  Clothify Button
14.  New Pop up Window:
               - Hip should show up
               - Clothify

15.  Collide Against Button
             -  Click "Add/Remove"
              - Pick all parts of the body and environment that the clothing will collide with  (ALT + LEFT CLICK will selection the child parts).  If the figure is going to be kneeling and the dress will hit the floor, pick "Ground."  If they are sitting in a chair, pick the chair.  Make sure you include body parts such as hip, legs, arms, hands if the clothing will come into contact with that part. No need to check things that won't touch the clothing
             - OK
            - Ignore head collisions = check mark
            - Ignore Hand collisions = no check mark (unless hands aren't involved)
            - Ignore Feet collisions = no check mark (unless feet aren't involved. Kneeling you don't usually want the feet ignored unless the feet won't be in contact with the dress)
           - Start draping from zero pose = check mark
           - Leave dials at default

(4. Dynamics Controls [Hip]
            - Calculate Simulation

That's the bare basics.   At times you will have to do other things like with the constrained groups or cloth density etc.   But for the most part the above should meet your needs most of the time for making a conforming item partially dynamic in the cloth room.

"It is good to see ourselves as others see us. Try as we may, we are never
able to know ourselves fully as we are, especially the evil side of us.
This we can do only if we are not angry with our critics but will take in good
heart whatever they might have to say." - Ghandi