How do I restore PenDriveLinux boot load menu after accidental overwrite?

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http://askubuntu.com – I have a USB drive with Ubuntu created from pendrivelinux.com. I've been running it off the USB drive to play with Linux on various machines without a problem. I recently installed Ubuntu to a hard drive from the USB drive using the USB boot loader's menu option (versus the "install to hard drive" option found on the live-USB desktop). Most everything installed correctly. However the installer overwrote the boot loader on the USB drive and never installed it on the fixed disk such that I couldn't boot the machine without the USB drive. I found this thread that helped me to correct the fix (HowTos)