Try something like this
Day 1
Upper body:
25 lbs --
Flat Dumbbell Press -- 3 x 10 Rep
20 lbs --
Incline Dumbbell Press -- 3 x 8-10 Rep
20 lbs -- Decline Dumbbell Press -- 3 x 8 Rep
30 lbs -- Dumbbell Rows -- 3 x 10 Rep
30 lbs -- 21 Bicep Curls -- 3 x 8 Rep
50 lbs -- Cable Front Pulldown - 3 x 8 Rep
Day 2
Cardio
Abs:
Roman Chair Oblique Raises -- 3 x 15 Rep
Roman Chair Leg Raises -- 3 x 15 Rep
Ball Crunches -- 3 x 15 Rep
Bicycles -- 3 x 15 Rep
Day 3
Lower body:
70 lbs -- Squat -- 3 x 8 Rep
45 lbs -- Dumbbell Lung -- 3 x 10 Rep
180 lbs -- Donkey Calf -- 3 x 10 Rep
110 lbs -- Rotary Calf -- 3 x 10 Rep
90 lbs -- Leg Press -- 3 x 8 Rep
70 lbs -- Leg Extension -- 3 x 8-10 Rep
90 lbs -- Hip Adductor -- 3 x 7-8 Rep
80 lbs -- Hip Abductor -- 3 x 6-7 Rep
Day 4
Rest
Repeat
The amount or lbs of weight an individual can do will vary (I stole this from Laura's Journal). If you can only do 5 lbs that is fine. The heavier you can do these the more strength and muscle mass you will gain. Continue until this becomes too easy then you might think of going to three day split.