Ah it works now, must have deleted it when I tried to transfer my current work unit to the new version.
I take it it's normal to fail any work unit you try and transfer?
It has downloaded a new unit and is processing with SETI worker 4.30 now
2004-09-16 03:05:12 [---] Starting BOINC client version 4.06 for powerpc-apple-darwin
2004-09-16 03:05:12 [SETI@home] Project prefs: no separate prefs for home; using your defaults
2004-09-16 03:05:12 [SETI@home] Found app_info.xml; using anonymous platform
2004-09-16 03:05:12 [SETI@home] WU refers to nonexistent app_version: setiathome 402
2004-09-16 03:05:12 [SETI@home] WU refers to nonexistent app_version: setiathome 402
2004-09-16 03:05:12 [SETI@home] Can't link workunit in state file
2004-09-16 03:05:12 [SETI@home] Can't link workunit in state file
2004-09-16 03:05:12 [SETI@home] WU refers to nonexistent app_version: setiathome 402
2004-09-16 03:05:12 [SETI@home] WU refers to nonexistent app_version: setiathome 402
2004-09-16 03:05:12 [SETI@home] Can't link workunit in state file
2004-09-16 03:05:12 [SETI@home] Can't link workunit in state file
2004-09-16 03:05:12 [SETI@home] WU refers to nonexistent app_version: setiathome 402
2004-09-16 03:05:12 [SETI@home] WU refers to nonexistent app_version: setiathome 402
2004-09-16 03:05:12 [SETI@home] Can't link workunit in state file
2004-09-16 03:05:12 [SETI@home] Can't link workunit in state file
2004-09-16 03:05:12 [SETI@home] WU refers to nonexistent app_version: setiathome 402
2004-09-16 03:05:12 [SETI@home] WU refers to nonexistent app_version: setiathome 402
2004-09-16 03:05:12 [SETI@home] Can't link workunit in state file
2004-09-16 03:05:12 [SETI@home] Can't link workunit in state file
2004-09-16 03:05:12 [SETI@home] link_result: nonexistent WU 06my04ab.10554.12465.667316.225
2004-09-16 03:05:12 [SETI@home] link_result: nonexistent WU 06my04ab.10554.12465.667316.225
2004-09-16 03:05:12 [SETI@home] Can't link result 06my04ab.10554.12465.667316.225_2 in state file
2004-09-16 03:05:12 [SETI@home] Can't link result 06my04ab.10554.12465.667316.225_2 in state file
2004-09-16 03:05:12 [SETI@home] link_result: nonexistent WU 06my04ab.10554.12465.667316.223
2004-09-16 03:05:12 [SETI@home] link_result: nonexistent WU 06my04ab.10554.12465.667316.223
2004-09-16 03:05:12 [SETI@home] Can't link result 06my04ab.10554.12465.667316.223_2 in state file
2004-09-16 03:05:12 [SETI@home] Can't link result 06my04ab.10554.12465.667316.223_2 in state file
2004-09-16 03:05:12 [SETI@home] link_result: nonexistent WU 06my04ab.10554.12560.1047142.24
2004-09-16 03:05:12 [SETI@home] link_result: nonexistent WU 06my04ab.10554.12560.1047142.24
2004-09-16 03:05:12 [SETI@home] Can't link result 06my04ab.10554.12560.1047142.24_1 in state file
2004-09-16 03:05:12 [SETI@home] Can't link result 06my04ab.10554.12560.1047142.24_1 in state file
2004-09-16 03:05:12 [SETI@home] link_result: nonexistent WU 06my04ab.10554.12560.1047142.23
2004-09-16 03:05:12 [SETI@home] link_result: nonexistent WU 06my04ab.10554.12560.1047142.23
2004-09-16 03:05:12 [SETI@home] Can't link result 06my04ab.10554.12560.1047142.23_0 in state file
2004-09-16 03:05:12 [SETI@home] Can't link result 06my04ab.10554.12560.1047142.23_0 in state file
2004-09-16 03:05:12 [SETI@home] ACTIVE_TASK:

arse(): result not found
2004-09-16 03:05:12 [SETI@home] ACTIVE_TASK:

arse(): result not found
2004-09-16 03:05:12 [SETI@home] ACTIVE_TASK:

arse(): result not found
2004-09-16 03:05:12 [SETI@home] ACTIVE_TASK:

arse(): result not found
2004-09-16 03:05:12 [SETI@home] Host ID is 181026
2004-09-16 03:05:12 [---] General prefs: from SETI@home (last modified 2004-06-25 01:45:45)
2004-09-16 03:05:12 [---] General prefs: no separate prefs for home; using your defaults
2004-09-16 03:05:12 [---] Insufficient work; requesting more