Partitioning a Large Drive in Linux

I've got a 16.8 GB EIDE, Ultra ATA Hard Drive which was installed with the Dell Dimension I bought 6 months ago. It came installed with Windows 98, so I used fips split the single partition into two partitions.

At this point, the RedHat 5.2 installation told me that my disk was full! (I had a 6 Gig partition empty, and 10 Gig allocated to Windows 98)

With a little reading, I discoverd the problem Linux can have with large hard drives. Given this, I further reduced my partitions to allow the Linux partition to begin within the first 1024 cylinders. Linux installed!

However, now I have a new problem. After the Linux installation, I have one primary partition that is 6589 MB for FAT32. I then have another Extended partition that is 1443 MB (Which I assume Linux is using because I see no other partitions with FDISK in DOS or with Partition Manager.) This gives me a total of 8032 MB of my disk. The other half of my drive is not partitioned, nor can I seem to partition it.

Has anyone else run into this problem? Can anyone help me? Thanks!