Struts portlet

hello,
I'm trying to develop a struts portlet to deploy on exo portal. I know I have to use the struts bridge as shown here http://wiki.exoplatform.com/xwiki/bin/view/PC/Portals+bridges but I still have problems.

Is there any struts example portlet that I can modify to get my simple struts portlet working and where can I find it?
Where can I find the exo.pc.util-bridge-2.0.jar,? it doesn't exist in lib folder.
Any other helpful informations are welcome.
thanks.