Hi there,
As I understood : after installing the operating system you are getting all kinds of error loading Windows, Right ?
Let me know
In the mean time, get a copy of Windows 98SE boot disk form this site(YES, WINDOWS98SE BOOTDISK)(OEM version)
http://www.bootdisk.com \
boot your system with boot floppy and on the command prompt type this in "fdisk /mbr" and ENTER, now reboot the system without the floppy, let us know how that works out for you.
Cheers