The issue is that I need to put the installer on the flash drive, not the install itself.Guide to building an XP bootable flash
Some of the information in the guide is inaccurate as this has been pulled off using variants outside some of the specified limitations. But for the most users, this will work.
EDIT: This link puts you at the second page of the guide, so do note when it says "Now that you have the prerequisites" it is referring to the page before. It's basically covering the drive you will need.