I agree with Sparkly, get them into the propagator ASAP. :) Mine were sown last month and have just been potted up into a three inch/9cm pot.
This is my first attempt at growing Bhut's from seed, previously I've inherited young plants in the spring. I've had 100% germination thus far using a heated prop, which surprised me; I expected a few failures, hence my early sowing. ::)