Dave,
Here's a link to IBM's Website that shows all the error codes. For the 0200 Error Code, it states
"Check to see if fixed disk is attached properly. Run setup. Find out if the fixed disk type is correctly identified."
I would open it up and remove the HDD and then replace it, just to reseat the contacts. We use thinkpads where I work and have occasionally had this happen.
I know the newer Thinkpads don't come with floppy drives, but if you have access to one, you may try booting with a Windows 98 floppy and see if you can access the drive that way. Or, you can download an NTFS Boot Disk from
here.
The NTFS Boot Disk opens as sort of a shell that allows access to your files. Of course this only works if your HDD hasn't failed.
Good luck!
Randy