raylin,
On the node do an ls -ltr /tftpboot
Look for the last psspfb_script_<DATE> script i.e. post AIX 5.1 upgrade.
Re-execute this on the node, then check the SDR on the CWS.
Cheers
PSD
IBM Certified Specialist - AIX V4.3 Systems Support
IBM Certified Specialist - AIX V4 HACMP