[gembud] GOES15 not displaying

Hello,

After GOES15 implementation NMAP2 does not display West conus images. It
complains: unknown GINI sensor number 18.
imgtyp.tbl file was updated from the latest GEMPAK package although my
version of GEMPAK is still old 5.10.4. Unwilling to upgrade as the tables
were heavily modified to accommodate various needs. Any help is
appreciated.

Thank you.