I installed RH Linux 8.0 on the second of two hard drives in my machine. I let the install program install GRUB into the MBR of HD1. However, it would not boot into Windows 98. Something was wrong with the boot loader - I think. Anyway, I was frustrated and uninstalled Linux per Red Hat's instructions. I was still unable to boot windows though. FDISK said that the partition was a non DOS partition. I downloaded Ranish Partition Manager, and it was able to convert it to FAT32. When I rebooted, Windows came up! But, I am unable to see my extended partitions. I tried running Partition Magic - it sees the C: drive, but it doesn't list any info about the rest of the drive. I doesn't show any unallocated space either. I think the info on the extended partitions is there, but I don't know how to retrieve it. Is there anything on the Linux install disk that can help?

Any info would be appreciated

You could try testdisk and gpart.
Th Gpart URI also has links to the Linux Ext2fs Undeletion mini-HOWTO and the Linux Partition Rescue mini-HOWTO.