Installing GRUB in a partition

[Tahin Daniel]

Dear Author(s)!

Some days ago I tryed to install GRUB to a partition. The version is 0.96, 
also the latest release. Well the MBR is  full, because of a diskmanager. 
GRUB starts fine, but some OS can't starts.
On this computer I have Windows 98 (first primary partition) + Windows 
2000  (second primary partition) (now I plan Linux:-)). GRUB is in  a 3. 
primary FAT partition.
But I'm not able to start Win98 (tryed with: chainloader +1 -root 
(hd0,0)-,  chainloader (hd0,0)/boot/grub/win98). This was the error 
message: "You must specify a valid path for command.com".  But: when I 
installed GRUB in the MBR on an other computer that doesn't requires 
diskmanager, it started correctly win98/win2000 from the first/second 
primary partition.

I'm not sure, whether is a bug or not, or is there anything wrong what I do?
Please help me, if you can, because I didn't find any other bootmanager 
that supports to install it in a partition, like GRUB.

A lot of thanx for your help.