vars_forums.cgi
Contents Example:
1|^|Forum 1|^|Forum 1 Description|^|On|^|is not|^|is|^|allreg&allreg|^|SGKPMU|^|1|^|default|^|ON|^|yes|^||^|all&all|^|000001|^|date|^||^|1
This should give you an idea how to rebuild the file. One line per forum in this file.