I don’t have any direct experience with Blender, so I can’t be very much help to you. But maybe someone else reading this thread can help you through the steps?
Which version of Blender are you using? If you are using Blender 2.4 or earlier, you can use Chicken, as described in the manual. If you are using Blender 2.5 or later, you might be able to use ninth’s converter, as described in this thread.
Or you can convert the Blender file to x format, as described in the manual, and use x2egg, as described in the manual. You seem to have done this more-or-less successfully, but there seems to be some confusion. Can you clarify what your questions are on this process?
David