so, yeah. that halogen lamp was the source of your pains. i started out with the same kinda crap lights. a halogen floodlight and some lamps.. i got my problems corrected, and i was farther along than you. i ended up junking all the plants from that batch and starting a couple more seeds.
the plant i have now was under those lights for maybe a week before i got some decent lights. the other 2 i planted went male. my plant was stretched pretty bad too, i took it and kinda tied a knot in it to make it shorter. i have pics somewhere of it twisted up, and now the base of the stem looks like a tightly curled pretzel. i doubt it did anything for it other than dropping its height a little and stablizing it when it was young.
i found the pics, these are from my horrindous start. and what came of it..
the first one shows how bad it was... second is of the twisty stem after i got some decent lights. third shows another shot the twisty stem one, before, is in the top right corner i think. and last shows that plant a couple days ago. not bad for such a shabby start id say.
Ery