Should every user of Coeus at my institution be in the Rolodex as well?
No, your users are picked up from OSP$PERSON table, if you choose to populate the person table first and link users to entries in OSP$PERSON. This is highly recommended. You should have a rolodex entry for the contact person for your organization in the roldex table though. This is the person referenced as the contact person from ORGANIZATION table. I noticed in the OSP$SPONSOR Table that the field COUNTRY_CODE is set for three characters. However, when I do a search on Sponsors, Coeus returns the full country name.