Thank you for your post, and I apologize for the late reply.
If you have found a solution, please post here so that others who encounter the same problem can benefit.
If you are still encountering the problem, please see Knowledge Base Article #6427 to determine the ports needed for FileMaker Server 10:
Port 80 is widely used for web publishing. Port 591 is registered to FileMaker, Inc., and no other application can use this port. However, it is not necessary to have this open.