[BIGEYE]

I am running Windows XP Pro on my C: drive, and using my D drive (Sata 2) for downloads, etc. The D drive is a 500 GB and was getting fairly full. Reluctant to delete my old files, I bought a 1 TB HDD to replace my old D drive.
Set about this task this morning, removed the old D drive with files intact, and installed the new 1 TB (Sata 2) drive in its place. Switched on and restarted Windows which didn't detect the new drive. I used Acronis True Image to detect new drive for which it duly did and called it D.
I then connected my old D drive to my external SATA connectors to copy all my old files over to my new empty drive.
When I connected the old drive to external Sata, it labelled this as F drive but shows as being empty, with around 500 GB free.
OK, so now I'm in a panic, I disconnected my old drive from the external sata cables and disconnected my new drive from the internal sata cables. I then connected my old drive as it was and left the new drive disconnected in the hope that I could transfer this way.
After connecting my old drive same way as it was before I started, it is still showing as F drive and empty.
My BIOS is set to auto detect all drives.
How do I get my files back and transfer them to my new drive?