As of about 6 weeks ago, he was 5'6" 138 pounds (down a few pounds from the month before) and in the mid to high teens bodyfat.
Strength-wise, again 6 weeks ago he had:
"Bench - 100 lbs
Rows - 85 lbs
Deadlifts - 155 lbs
Press - 85 lbs
Pullups - 3x7
Curls - 60 lbs - 3x10
Skullcrushers - 45 lbs - 3x10"
To be fair, your last thread said you weren't doing any squats, which is a pretty significant "variation". And, if I followed everything correctly, you started training about four months ago and have jumped around with three or four different routines in that time.
What have your workouts actually looked like (days, exercises, sets, reps) for the last month?
That's the thing, though. Are your lifts going up? As a rule of thumb, it's kinda silly for someone to lose a few pounds of weight, deadlift just a hair more-than-bodyweight, and then wonder why they're not getting bigger. Relatively-strong curls, though. Gee, what a surprise.
What weights are you currently moving?
Just to make things unnecessarily complicated, I'll answer this with a math equation: W + S + A = M
Where, W is increased bodyweight via proper nutrition, S is increased strength on the main lifts, A is improved performance (weight or reps) on accessory lifts, and M is added muscle and improved body composition.
If you want to build muscle, you need to increase bodyweight and get stronger on the main lifts and improve on accessory ("bodybuilding" stuff) (the priority of those last two is debatable, but that's an issue for another thread).
If you're not getting bigger/more muscular, check those three variables and make sure they're actually dialed in.