It seems to be all there but it won't boot. I get a black screen with a flashing "_" cursor. Did I miss something? I followed all of djohnson's stepsin the magazine and double-checked before continuing. Before I erase the USB and try it again, is anything obvious? Do I need to provide more information?
Maybe you should explain exactly, step by step, what happens.
Start like this ........ ' I plug in the USB stick, I turn on the power ........'
"won't boot" can have different meanings to different folks.
If you get a Grub boot option page, and select to boot PCLOS, then the USB device is bootable
If you don't get the boot option page then you need to tell us.
More details of what you do and what happens will help clarify the situation.