I am upgrading from 4.5.10 to 5.0.6 and I am hanging on the migrate20070809-Signatures.pl script with in the upgrade. At least it appears to be hanging. Is there a log file for this script that I can watch? My processor is topping out at 99% and I have been running now for 12 hours

and my store is about 30 Gig. I have looked at the ZMsetup.log that correspondes to the upgrade but it only showes me the last script ran wich is migrate20070809-Signatures.pl. Should I kill it or let it run?
Any info would be helpful,
J