The situation, as you describe, does not entitle you to any of the insurance proceeds upon your husband's death. The proceeds will be distributed, income-tax free, to his children.
The trust situation you describe needs to be more fully addressed before a complete answer can be given. However, it seems that you will receive a monthly income based on your husband's trust assets upon his death. The trust will pay income tax on the income of the assets and you will be responsible for taxes on any income in your name (not the trust's).
Answered on Sep 13th, 2011 at 3:24 PM