Here's the log:

************************************************************
Backup to 'D:/' started at: [Tue Jan 15 16:35:06 2008]

Archiving the contents of the following directories into D:/\0\campus\filebackup.tar
C:/PROGRA~1/CSCOpx/campus/etc/cwsi\DeviceDiscovery.properties 
C:/PROGRA~1/CSCOpx/campus/etc/cwsi\ANIServer.properties 
C:/PROGRA~1/CSCOpx/campus/etc/cwsi\discoverysnmp.conf 
C:/PROGRA~1/CSCOpx/campus/etc/cwsi\datacollectionsnmp.conf 
C:/PROGRA~1/CSCOpx/campus/etc/cwsi\Snmpv3EngineParam.txt 
C:/PROGRA~1/CSCOpx/campus/etc/cwsi\UTSnmpv3EngineParam.txt 
C:/PROGRA~1/CSCOpx/campus/etc/cwsi/users
C:/PROGRA~1/CSCOpx/campus/etc/cwsi/archives
C:/PROGRA~1/CSCOpx/campus/etc/users
C:/PROGRA~1/CSCOpx/campus/etc/cwsi/ReportArchives
C:/PROGRA~1/CSCOpx/htdocs/campus/maps

ERROR(683): Cannot create or back up tar file. Backup cancelled. Verify that you have write-access to this directory.
Backup failed: 2008/01/15 16:35:40
!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!

************************************************************
Backup to 'D:/Backups' started at: [Tue Jan 15 16:40:05 2008]

Archiving the contents of the following directories into D:/Backups\0\campus\filebackup.tar
C:/PROGRA~1/CSCOpx/campus/etc/cwsi\DeviceDiscovery.properties 
C:/PROGRA~1/CSCOpx/campus/etc/cwsi\ANIServer.properties 
C:/PROGRA~1/CSCOpx/campus/etc/cwsi\discoverysnmp.conf 
C:/PROGRA~1/CSCOpx/campus/etc/cwsi\datacollectionsnmp.conf 
C:/PROGRA~1/CSCOpx/campus/etc/cwsi\Snmpv3EngineParam.txt 
C:/PROGRA~1/CSCOpx/campus/etc/cwsi\UTSnmpv3EngineParam.txt 
C:/PROGRA~1/CSCOpx/campus/etc/cwsi/users
C:/PROGRA~1/CSCOpx/campus/etc/cwsi/archives
C:/PROGRA~1/CSCOpx/campus/etc/users
C:/PROGRA~1/CSCOpx/campus/etc/cwsi/ReportArchives
C:/PROGRA~1/CSCOpx/htdocs/campus/maps

ERROR(683): Cannot create or back up tar file. Backup cancelled. Verify that you have write-access to this directory.
Backup failed: 2008/01/15 16:40:33
!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!

************************************************************
Backup to 'D:/Backups' started at: [Tue Jan 15 16:54:26 2008]

Archiving the contents of the following directories into D:/Backups\0\campus\filebackup.tar
C:/PROGRA~1/CSCOpx/campus/etc/cwsi\DeviceDiscovery.properties 
C:/PROGRA~1/CSCOpx/campus/etc/cwsi\ANIServer.properties 
C:/PROGRA~1/CSCOpx/campus/etc/cwsi\discoverysnmp.conf 
C:/PROGRA~1/CSCOpx/campus/etc/cwsi\datacollectionsnmp.conf 
C:/PROGRA~1/CSCOpx/campus/etc/cwsi\Snmpv3EngineParam.txt 
C:/PROGRA~1/CSCOpx/campus/etc/cwsi\UTSnmpv3EngineParam.txt 
C:/PROGRA~1/CSCOpx/campus/etc/cwsi/users
C:/PROGRA~1/CSCOpx/campus/etc/cwsi/archives
C:/PROGRA~1/CSCOpx/campus/etc/users
C:/PROGRA~1/CSCOpx/campus/etc/cwsi/ReportArchives
C:/PROGRA~1/CSCOpx/htdocs/campus/maps

ERROR(683): Cannot create or back up tar file. Backup cancelled. Verify that you have write-access to this directory.
Backup failed: 2008/01/15 16:54:52
!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!

************************************************************
Backup to 'C:/' started at: [Tue Jan 15 16:55:13 2008]

Archiving the contents of the following directories into C:/\0\campus\filebackup.tar
C:/PROGRA~1/CSCOpx/campus/etc/cwsi\DeviceDiscovery.properties 
C:/PROGRA~1/CSCOpx/campus/etc/cwsi\ANIServer.properties 
C:/PROGRA~1/CSCOpx/campus/etc/cwsi\discoverysnmp.conf 
C:/PROGRA~1/CSCOpx/campus/etc/cwsi\datacollectionsnmp.conf 
C:/PROGRA~1/CSCOpx/campus/etc/cwsi\Snmpv3EngineParam.txt 
C:/PROGRA~1/CSCOpx/campus/etc/cwsi\UTSnmpv3EngineParam.txt 
C:/PROGRA~1/CSCOpx/campus/etc/cwsi/users
C:/PROGRA~1/CSCOpx/campus/etc/cwsi/archives
C:/PROGRA~1/CSCOpx/campus/etc/users
C:/PROGRA~1/CSCOpx/campus/etc/cwsi/ReportArchives
C:/PROGRA~1/CSCOpx/htdocs/campus/maps

ERROR(683): Cannot create or back up tar file. Backup cancelled. Verify that you have write-access to this directory.
Backup failed: 2008/01/15 16:55:39
!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!