Hi,
what you need to do is the following:
1.
Remove the existing partitions and in fact everything Unix/Linux related from the hard disk. Do this by downloading the WIN98 Boot diskette (with CD-support) from this link:
http://www.syschat.com/download62.html
On another PC extract the package to a diskette and boot the Unix server using the diskette. If the server really has no FAT-partitions, the bootsidkette will result in entering a DOS-prompt. Start the FDISK-command and remove all NON-dos partitions from the harddisk. Then create a DOS-partition (FAT or whatever it was called). Info on using FDISK:
Microsoft fdisk command page
2.
After this, reboot the server using the same diskette AND with the WIN98 CD in place and install Windows.
HTH,
Petri