Do you remember if your original drive in the Fantom Titanium was formatted as NTFS or FAT 32? I can't confirm for sure, but the controller that converts from SATA to USB inside the enclosure may only be able to recognize FAT 32. If you try to format a drive through Vista, it only allows you to format as the newer NTFS. You could try reformatting from your XP machine where you should be able to select FAT 32 as an option when formatting.
The other possibility is in reference to your jumpers. Jumpers should only matter for devices on a parallel bus, every time I've worked with SATA drives in the past, I've never had to mess with jumpers. If you do have a jumper on the drive, pulling it off will ensure it's not active.