HAMR 5600 voice modem

My when I installed the driver (HAMR 5600 voice modem) from the file I downloaded from the net [SLA56-V3.04.00-MV-WIN98] after it was unziped and after I uninstalled the previous drivers from the control panel (add/remove programs, etc.) I recorded the following errors:
MTLHAL Hardware does not support modem
MTLSTRM Can not load HAL driver
MTLMDM Cannot open stream manager and so am unable to connect, can anyone help.