Kernel Panic when awaking from Sleep mode - since Security Update 2007-04

Question

Since installing security update 2007-04, whenever I put the ibook into sleep mode, either using the menu or closing lid, when I reopen, I get the Kernal Panic black screen asking for a restart. I then reboot and everythings ok.
Any ideas?
Machine Model: iBook
CPU Type: PowerPC 750 (22.15)
Number Of CPUs: 1
CPU Speed: 500 MHz
L2 Cache (per CPU): 256 KB
Memory: 640 MB
Bus Speed: 67 MHz
Boot ROM Version: 4.2.0f4
Serial Number: UV133252LAN
Sales Order Number: M7692LL/A

Answer 1

Rod Hagen suggests:
Disconnect everything, then
1) Boot up from OSX DVD or CD
2) Repair disk and repair permissions using disk utility
3) If now possible to boot from the internal download, run the "Combo" Update, and then install the SU.
4) if not possible then do an "archive and install" of the OS while booted from the OSX DVD/CD before checking the drive again and updating
5) If not possible to boot from CD/DVD do a PRAM and/or PMU reset.
( … if the person concerned has an up to date backup on a bootable drive, then they should simply check the internal drive properly with DU and then clone the backup back to the internal, check the internal drive again, and then install the SU update.)