hey man, dont transplant that thing again, someone above mentioned it and i think that has alot to do with it being a little messed up. the plant actually looked BETTER before you transplanted it the first time. you probally put it into shock as the roots werent interwoven with the soil enough and probally caused root damage when you moved it.
as for watering it, poke your finger right down into the soil a couple inches. if that soil is still moist then the plant is fine and dosent need to be watered really. remember with the pre fertilized soil everytime you water you release more nutes. more water = more nutes released so when you do water again just give it maybe 1 cup of plain water (for now) when the plant gets bigger and can handle the nutes in the soil you will want to water untill you get a little runoff as this will help prevent aginst buildup.
please tell us what kind of light you have in that bucket. 1 bulb is fine if its the proper spectrum but some of those CFL's come in spectrums that provide little to no plant growth. what wattage? what color temp (will be a number in the 1000's range with a K after it i.e 2700k i think is the lowest one they make and they go up to 6500k)
if it is a low wattage CFL you want it closer than 8" but i dont want to tell you to move it closer till i know what kind of bulb it is.
nute burn sucks, im dealing with it myself because of the same reason, pre fertilized soil and too much water. i watered mine 7 days ago and got the burn havent watered again since and wont untill tomorow night, i might even try a flush but im trying to get more info on it before i go ahead and do it.
sorry to hear about your cousin man, i wish ya the best of luck with this plant.