thank u very much for your quick reply. i still didn't try the things on the page u gave me since my problem just got worse. i re installed grub by logging into
grub> using
linux rescue and using
root(hd0,8) followed by
setup(hd0,8) where my
/ is in hda9. but it didn't work either. then i re installed fedora this time by installing the bootloader to the MRB. after that now i can't login to windows too.

the worst thing is i can't use the windows setup cd to use
fixmbr since the machine just hangs after dispalying
windows will now configure your hardware.... or something similar to that

i tried every thing i possibly can changing jumpers, boot sequences even master slave arrangements and no result. finally i pluged my hard disk in one of my friends machine and it runs the windows blue screen setup and complains it can't find hard disk.
what i did was i used his machine and my hard drive as slave, backed up every thing i need and completly deleted the partitions. now the windows setup runs(even in my machine) with out earlier complains.
this is my current situation. i need to re-partiton my hard drive and start everything from scratch. definitely i need fedora with windows in my machine for my project work and i will try the same thing again. hopefully i doubt i will end up in the same mess again.
please provide me with further assistance on what shall i do..
most importantly i need to install grub to the first sector of the boot partition and not to the MBR.
please help