I tried to use the installer for netbeans IDE + jdk (jdk-7u21-nb-7_3-windows-i586.exe). All of the netbeans stuff is installed fine, but the jdk part fails, but at least this time it lets me know "Installation of JDK 7 Update 21 was not completed."
The log files just say there is an exception at org.netbeans.installer.utils.exceptions.InstallationException: JDK installation finished with error code -3.
So it has worked fine on my other machine, I am at a loss here. Sorry again that I couldn't figure out where to post this.