I have not taken the time to read every reply, but here goes:
If you are a genetically typical, natural trainee, that routine sucks. Five days a week? Try a 3 day a week routine emphasizing compound lifts (squat, deadlift, etc).
I'd stay away from the smith machine. Find a gym with some barbells. If you can't find one you may want to consider getting on craiglist and buying one. You'd be better off doing deadlifts and military press with your own barbell in a garage than trying to gain weight with a smith machine.
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