Progamer Justin - 18 month sentence, 3 years suspended sentence, 3 million won fine, 120 hours of community service, 40 hours of gambling treatment program.
Progamer sAviOr - 1 year sentence, 2 year suspended sentence, 120 hours of community service.
Ex Progamer By.1st - 6 month sentence, 1 year suspended sentence, 40 hours of gambling treatment program
Ex Progamer ShinHwA - 6 months sentence, 1 year suspended sentence, 40 hours of gambling treatment program
Note on "suspended sentence": If they don't screw up within that time period, they actually don't end up going to jail, and they count that you have served your sentence after that period is over.
The other progamers who were involved were let off with a fine, iirc. I don't know if there was anything past that, but since I haven't seen anything regarding them, I assume that is true.