What kind of florescent lights are you using? you're right your hps lamp should be up top. plant looks like a sativa maybe hybrid sativa/indica. never grew that breed. Sativa's usually talke at least 10 to 12 weeks to flower. Usually breeders give an estimate of flowering time but that depends on your set up and conditions.That's my opinion and best guess. Now that your hps is up top maybe it will start to fully flower.