Workitem Type icons missing

I have a process spec that was initially created in a sandbox environment. A new project area was created on a test server. The process spec for the new area was replaced with the xml of the sandbox project area. The icons for the different work item categories are not showing in the new area. Looking at the process spec, open the process config tab to edit the category icon, it shows none and none are listed when I edit the type. Clicking 'add icon' takes me to the eclipse folder of the team concert install. Where do I go to select the available out of the box icons? Where are these stored? The original spec had something like "processattachment:/workitemtype/task.gif" in the xml. I seem to be out of sync between the client, server and/or process xml. Please advise.