Egg is loading correctly:
2009-05-07 15:42:05,383 Trac[loader] DEBUG: Loading defaultcc.main from /trac/ElectronicsRefresh/plugins/Default_CC-0.1-py2.5.egg
2009-05-07 15:42:05,383 Trac[loader] DEBUG: Loading defaultcc.admin from /trac/ElectronicsRefresh/plugins/Default_CC-0.1-py2.5.egg
...
2009-05-07 15:43:35,820 Trac[loader] DEBUG: Adding plugin Default-CC 0.1 from /trac/ElectronicsRefresh/plugins/Default_CC-0.1-py2.5.egg
2009-05-07 15:43:35,820 Trac[loader] DEBUG: Adding plugin Default-CC 0.1 from /trac/ElectronicsRefresh/plugins/Default_CC-0.1-py2.5.egg
Upgrade is needed:
2009-05-07 15:42:05,388 Trac[env] WARNING: Component <defaultcc.admin.DefaultCCAdmin object at 0x7f8635db7190> requires environment upgrade
I think the trac failure the reporter is referring to is just a normal request for a plugin upgrade. Please reopen if you continue to have trouble.