Load USB ISO from existing Image to another computer

[ssxt]

1. Created image like I wanted.
2. Used SystemBackup - per LL instructions - created an ISO on 16GB USB / Pendrive.
3. Boot off USB on another computer - same exact model of thin client - choose the Install option.
4. After entering user, pwd, host, etc. into goes to Partition Settings.
5. The Pen drive is 14.92 Gib; the computer's  drive is 14.91 Gib.
      >>>IS THIS THE ISSUE???too 'big' of ISO?
6. I do NOT understand Linux partitions (familiar w/Windows).
7. When I create a new partition and 'reset partition settings', it never gives me the 'NEXT' option.

Or How do I get to the 'Install Linux Lite' option AFTER I boot from the USB Pendrive - That Install option is EASY.

Thanks
Td