Phil,
For loop start lines check this:
AXXESS SYSTEM / PREMIUM FEATURES / ADVANCED CO INTERFACES: Must be checked yes.
AXXESS SYSTEM / CABINETS / OPTIONS CARD / DSP PROGRAMMING / CALLER ID RECEIVERS: Must be programmed and the appropriate number of DSPs installed on the OPC.
AXXESS SYSTEM / DEVICES AND FEATURE CODES / TRUNKS / TRUNK CIRCUIT / SERVICE TYPE: Caller ID option must be selected.
AXXESS SYSTEM / STATION RELATED INFORMATION / FLAGS / EXPANDED CO CALL INFORMATION ON DISPLAYS: Appropriate keysets must be included in list.
AXXESS SYSTEM / STATION RELATED INFORMATION / FLAGS / OUTSIDE PARTY CALL INFORMATION HAS PRIORITY: Appropriate keysets must be included in list.

For PRI not displaying name, Check in database programming - SYSTEM - Station Related Info - Flags. Make sure "Outside Party Information Has Priority" has all the stations listed that require Caller ID to be displayed