200GB - Vanishing and Corrupt Partitions

I bought a new hard disk today, a Samsung SP2014 200GB but I'm having a load of problems with it.

First of all, none of the patched versions of FDisk could see the drive properly. The only FDisk program I could find that was close is one that supports up to 180GB. I figured, seeing that it's only supposed to be a cosmetic thing that this would work properly. I made the primary/boot partition 20GB's big (thinking it would clear up the 180-200 overlap), and made 5 logical drives in the secondary partition - 10GB, 20GB, 30GB, 65GB, and 55GB (or there abouts - was relying on percentages do to fdisk's limitations).

These partitions seemed to work - they formatted alright, though the 65GB one did show up as something like 3.14GB while formatting from dos, but, after installing Windows 98, it appeared fine, however, one of the partitions had no size attributes under Windows, so I formatted it thinking I had missed it out during dos format.

I started copying files from my secondary 80GB drive to the partitions on the new drive and initially everything that I copied ran fine from the new disk. Then, I noticed one of the unused partitions was filled with corrupted filenames - so I reformatted that too.
I rebooted the PC after copying just about everything from the 80GB disk, but when I got back to the desktop top all of the new drive's partitions apart from the primary - C and the first logical - D had vanished.

Does anyone know what's going on here? Is the drive faulty or is FDisk to blame for corrupted partition tables or something?