Well, an EISA card won't fit in an ISA slot, so there's your first problem. You're second problem is that you don't have any of the glue necessary to make it work (i.e. the PCI bus controller). So, it's not possible. . . . (And while there may be lines running from the EISA edge connector to the PCI and ISA slots, they wouldn't work in a standard EISA slot either. That board is probably designed as a riser for a specific mainboard.)
Trev