eclipse, pydev, easy_install-ed eggs problem

I have a problem with eclipse and easy_install'ed packages into virtualenv.If I have

from sqlalchemy.ext.serializer import loads 

import statement and put mouse cursor on "load" I get message

loads Found at: __module_not_in_the_pythonpath__ 

and it repeats with any module on PYTHONPATH while I have not manually add it to the Project properties -> PyDev - PYTHONPATH -> External Libraries :/Like ~/Work/Environments/Default/lib/python2.6/site-packages/Pylons-1.0-py2.6.egg or any other egg pkg dir... ~/Work/Environments/Default/lib/python2.6/site-packages/ is added but eclipse can't see any eggs inside it!

Python interpreter is set to ~/Work/Environments/Default/bin/python2.6

I use eclipse-SDK-3.7M5-linux-gtk with latest PyDev.

Can someone help me with that?