[CentOS] Drive recovery?

Tue May 10 18:24:00 UTC 2011
Ashley M. Kirchner <ashley at pcraft.com>

     I have a CentOS 5.6 system (recently installed) that, for some 
reason, has decided to mangle one of its drives, specifically /dev/hde1 
...  No errors anywhere, just rebooted the machine over the weekend and 
it's gone.  Up till the reboot, the drive was fine, I was writing to it 
without a problem.

     fdisk tells me:

# fdisk -l /dev/hde

Disk /dev/hde: 160.0 GB, 160041885696 bytes
240 heads, 63 sectors/track, 20673 cylinders
Units = cylinders of 15120 * 512 = 7741440 bytes

    Device Boot      Start         End      Blocks   Id  System
/dev/hde1   *           1       20673   156287848+  83  Linux

     There are no hardware errors in the boot log (dmesg).  The only 
error is that it can't find the ext3 fs that was on that drive.  
Unfortunately, it's not a drive I can simply reformat and call it a 
day.  There's data on it I need.

     When I try to mount it, I get: hfs: unable to find HFS+ 
superblock.  Obviously that's not right as the drive was formatted as an 
ext3.  So if I force it, I get this:

mount -t ext3 /dev/hde1 /mnt/hde1
mount: wrong fs type, bad option, bad superblock on /dev/hde1,
        missing codepage or other error
        In some cases useful info is found in syslog - try
        dmesg | tail  or so

     So, is this just an indication that the partition table is hosed?  
Is there anything, any tool, any way of reading the data off of this 
drive and put it elsewhere?