I'm having a little trouble understanding your post.
Are you saying that you have one hard drive on the laptop, with 6 partitions and all the OS' you are referring to are on the same hard drive?
Let's asssume this is the case.
When you install any OS, by default, it will overwrite the MBR, unless you tell it to do otherwise.
So, you installed Fedora and told grub to install to the MBR?
Grub will only know about the other OS' that you installed BEFORE that Fedora installation. This is why you always install Windows before your Linux choice. Linux will automatically find the previous Windows installation and offer to dual boot. Windows will not.
When you installed Windows 2003, it overwrote the MBR. So grub booting is gone.
Where did you install Windows 2003? Did you allow it to take over the C partiton?
I just had an interesting experience installing Fedora's new test 5. Things keep changing on the installer, so bear with me.
You have two choices.
Boot the first Fedora installation disk and at the boot prompt for the installation add linux rescue to the command line. Hit enter. When you get a command prompt, type in;
This gets you to the root of Fedora, as if you were at the command prompt within the root of Fedora.
Then to recover Grub to thew MBR, type in;
Do not type in hda1!, just hda.
Make sure there is a space between grub-install and /dev/hda.
The command pronpt should come back with no errors.
This should get back grub, as the bootloader. This may work, or it may not, depending on your installation sequence. BUT, your last install of Windows 2003 will not be a choice at boot, because grub does not know about it, unless you installed it to where Windows Home Edition was originally, the "c" partition.
Making a lot of assumptions about how you installed Fedora and your two Windows flavors, the best solution would be to re-install Fedora.
This will assure that Windows is found and grub is installed correctly.
Understand that you need to have a plan when installing any OS. Plan ahead of time what you want on the system, then proceed. This will avoid such problems.
Ask questions if you have any doubts.
BTW, I deleted your other untitled post, as it was a duplicate of this one.