I can't understand this design. There is no "delegation tier". There could be a delegation project, but it will have to be included on the classpath of the web tier.
In that case, your project (if it's a
Java project) can't define references to
EJB's, since those can only be defined in J2EE projects like EJB Projects, WAR projects and Java Client Projects.
Can you be more specific about exactly what your structure is and what you've done?
Kyle