How to forum: Help retriving files from WD My Book Essential

First thanks to all that have taken the time to try and help me getting this problem fixed. A quick recap of what happened what I tried and where I'm at with this "headache"

I purchased a WD My Book Essential 1TB external drive. I "moved" a lot of MP3 files and numerous family photo's and videos to the external drive to clear up space on my C Drive. All was working fine until the external drive was dropped. When I plugged it back in it wouldn't power up. I tried different UBS ports, chords and finally tried it on another computer and it would not power up. I was able to borrow a friends docking station and after extracting the HD from the plastic case popped it into the HDD1 slot of the docking station. You can hear it running (no screeching or abnormal noises) but it didn't seem to read the disk. It doesn't show up as a physical drive under My Computer. I went to Computer Management and under Storage clicked on Disk Management . On the right side of the screen it shows the C Drive and say that it is "healthy" That's the only drive that shows up on the upper part of the screen. On the second half of the screen the old external drive shows up under Disk 1 and show 931.51GB unallocated. Under properties the drive does show up and it says that the device is working properly. That's the long and short of it, it seems like the info is still on the drive but how do I get it back? Any ideas? Thanks again for all the help that has been offered.