If you are talking about re-vegging, check the links in my sig. Pretty much guides you all the way thru the process. Takes a bit of patience to re-veg under fluoro's, but it does work well. :thumbsup:

Your main problem will be that the undergrowth on your flowering ladies have not seen usable light in a while. Since fluoro light isn't strong enough (beyond a few inches) to promote photosynthesis, you may want to keep a little more of the plant, on the plant after harvest. As long as there are some green leaves or internodal shoots forming, photosynthesis can occour, and life begins (again)...