Can't Mount Firewire (1394) Drive

I have an IBM Deskstar 46.1Gb with three partitions formatted as FAT32. I'm
now transferring the data from this drive onto our new system running NTFS
with Windows XP Pro SP1. The old drive doesn't contain system files or
anything like that, just documents and video files.

I'm trying to use the drive through a Sarotech external firewire (1394) box.
When I plug it in to the system the drive gets recognised (the Remove
Hardware Safely icon pops up) but it doesn't mount any volumes. It also
appears to freeze RunDLL32.

I have tried all the different possible jumper configurations all end with
the result I just mentioned above or no reaction from the system at all. I
have also plugged the original FAT32 (One partition only, 20.5Gb AT Fireball
Plus AS) system drive from the old computer into this same firewire box with
no problems.

I know the drive is not dead, because if I reconfigure the old system, the
46 Gb drive is mounted and everything works fine.

Does anyone have any suggestions?

Can't Mount Firewire (1394) Drive