Workflow: no email shot when state change?

Hi,
I set up workflow with 3 state, draft, review approved, and use trigger's Workflow to send emails. All works fine like chekboxes to record the state and commentary notes, but no email sent, nothing happened. in a separate set of actions-n-triggers, I use regular action and trigger to send email or send tokenized email... and they works. But nothing happens to my workflow trigger and their actions... Pls help! Huj