That is the generic label for any win9x OS because it's DOS-based.
Did you make a bootdisk for Redhat during installation?Better yet,you can boot off the Redhat CD into rescue mode and redo the bootloader to see both OSes.
Here's the Redhat 8 guide on bootloaders.In rescue mode it should give you the bootloader option.Scroll to the top of the page for all the info.
HTH
lynch