Make sure the Primary MAC address listed in the FOG console is the wired MAC address on the laptop, should be correct since you did full registration from boot menu but double check anyway.
Also when you add the job check the /tftpboot/pxelinux.cfg/ directory to make sure FOG placed a file in there named with the wired mac address of the laptop. If that file is not there the laptop will instead show the default fog boot menu.
If that file is not there verify the TFTP password for the storage node configuration and the rights on the tftpboot folders.
Trying to find a page in the wiki that details the rights/passwords part, I thought one existed already.