I can't find the GINA(General INterchange and Archive) reader or writer in my version of FME 2016

Autodesk GIS Design Server (VISION) GINA (General INterchange and Archive) file format

The Vision* GINA reader and writer was been removed from FME 2016 and later. You can still access the GINA reader & writer in FME 2015 or earlier.

Remember you can have multiple versions of FME Desktop installed, just use a different install folder. So if you want to upgrade your version of FME, but still have some Gina workflows you need to support you can keep the older FME 2015 for those specific tasks. (that doesn't apply to FME Server).