Does your stem look like this? This shows a threadless fork with the top cap and bolt removed. You remove the two stem bolts and slide the stem up and off. Then the fork comes right out, since the stem is holding the fork in place.
EDIT-- I read your posting more carefully and see that you've already removed the top cap. Nevermind.
Photos would be good.
Last edited by rm -rf; 06-25-08 at 04:50 PM.