Windows will not allocate a drive number to my slave drive

I am using Windows XP Home edition. I had a boot up
problem and so I went to "Go back" to choose an earlier
time when the system was working fine. While "Go back"
was copying sectors, the system shut down. I could no
longer boot up at all. I bought another hard drive, (I
wanted to use a separate drive as a back up anyway). I
installed the new hard drive, partiioned as ntfs and
installed the XP operating system. The new drive is
working fine. I need to retrieve important files from the
old drive. I set the jumpers for slave, bios sees it and
shows it as a primary slave drive. When I boot up to
windows, the old drive doesn't show up in "My Computer".
Windows XP doesn't give it a drive number. It shows up in
the device manager as a hard disk and working properly,
but not as a drive. I used the XP repair console and it
asked me if I wanted "C" Windows or "F" Windows. I
chose "F" Windows and I was able to view the directory of
my old drive that dos is calling F drive. Windows is not
seeing it and the repair console will not allow me to copy
files on the old drive to the new one. How can I get
windows XP to see this drive as a drive instead of a hard
disk storage unit. Anyone got an idea. Both drives are
partitioned as ntfs which Windows XP should be O K with..