to be honest with you, you need to have all that setup BEFORE you plant. Do you know anything about the attic besides:
1) its dark
2) its above most people walking by

Seriously, you need to get an electrician to come up and put in some electrical plugs, make sure you can actually have the light setup there without burning down your house. Then you need to think about air extraction, but you also have to think about where the intake of air is gonna be, you gonna take outside air or just stage air? What about the mold, dust, spiders, any other critters (mice, cats, etc) What is the normal temp day AND night, what is the humidity for both? This is not just something you can throw in dirt and watch grow......

What you need to do is put that plant back in your closet with a lamp and CFL from walmart so that plant can survive.... THEN you need to do some SERIOUS RESEARCH. Things like this are very important, i dont want to come across as being mean or anything, but you really need to take everything that you heard from "a friend" and throw it out.

More than happy to answer your questions and all, but please, please, please do some research first.....