So on the list I told it where the BartPE files are and it still wants a path for a full XP install. All I want on here is BartPE so why do I need to enter a setup source?

The program is designed to make MultiBoot USB-sticks with boot.ini Menu.
Such sticks require the files ntldr and ntdetect.com which come from your XP Setup Source.

The file ntldr is essential to get the Boot Menu and is not present in your BartPE Source
and is also absent in a possible Vista OS environment.

For making your BartPE Source there was anyway an XP Setup Source needed,
which you can use for making the MultiBoot USB-stick with USB_MultiBoot.cmd

Thanks. Yeah I knew you need a source to make BartPE, but I figured out that after the next process you can just click no to only copy BartPE without copying an entire xp install. I have a cheap Newegg brand flash drive with crappy speeds so copying XP takes like 30 minutes.