Best way to recover data from hard drive installed in new computer?

Hi folks,

I recently moved a hard drive from my old computer to my new computer as the secondary hard drive and using "Disk Management" got Windows 7 to recognize it.

Now this hard drive has 2 partitions (from its setup in the old computer), one is the HP recovery partition and the other a FAT file system containing all of my data. Once I used Disk Management to recognize these drives, my old data partition became F: on my new computer and the HP_RECOVERY partition is K:.

Now it appears I can successfully peruse K: the old recovery partition and see directories and file in there. However, F: appears to be corrupt or hosed or something. Using the DOS shell shows this:

Microsoft Windows [Version 6.1.7600]
Copyright (c) 2009 Microsoft Corporation. All rights reserved.

F:\>dir
Volume in drive F is ΣÇ♫H

Directory of F:\

01/17/1990 12:38 PM 6 à
1 File(s) 6 bytes
0 Dir(s) 3,543,040 bytes free

F:\>

And from Windows Explorer it looks like there are 3 folders present but with garbage names with odd ascii characters in them.

What is the best way for me to recover the data off of F: partition on this hard drive?

Thanks for any ideas/help!
Pat