From What I see and reading the log, you are over 3 months into this grow something is serriously wrong.
From your last pics your soil looks extreamly dry, need to water them, I use a $10.00 hydrometer from HD to check my soil between waterings to make sure they need it.
Lighting what are you using and what kind of time cycle are you on? When you say light from a lamp do you mean 100w incadecent light (standard every day lightbulb)?

If so I think this is the root of your grow issues, they produce to much heat and the wrong color spectrum for growing, that will explane the very slow growth and the burnt leaves.

If you want to save this crop and learn to flower you need to replace that light with a CFL rated at 2100 kelvin or warm white, water the plants, get a timer and set it to 12/12 hours on and off.

Once you have done this check back in with some pics and we will go from there.

WULOL.