Self-explanatory, the alternate install CD for lpia (Low-Power Intel Architecture) of Jaunty 9.04. Got it from http://cdimage.ubuntu.com/ports/daily/current/. Already did md5sum and the hash came back correct.
Here's how to make a bootable USB from an iso: https://help.ubuntu.com/community/Installation/FromUSBStick. Basically, use usb-creator and follow the prompts, pretty easy. If you find it hangs on Installing, I had to sudo apt-get remove usb-creator and reinstall, then it worked fine.