Cant reach my external HDD, but can see it from Computer Management and System

As i said on the topic.

While i use my external hdd, my computer freezed and i restart it.

After windows started, i plug hdd again i couldn't see my hdd on 'my computer'.

But i can (not cant) see it My Computer(Right click)>Manage>Disk Management and Control Panel>System>Device Manager>Storage Drivers(i dont know exact word for it, coz i use Turkish Win)

And i can't do anything from these tool. I cant give driver letter, i cant recover or see with recovery programs, i cant and i cant

And i know it nothing to do with OS, and i need all things in this hdd.

Device : WD 3200BEV External USB Drive

And thats my problem, please help me out.

Describe the external drive and enclosure.

These are the photos of it. İf you think to open the case. Its so hard to do it. And i dont want to do, because this hdd not mine. I want to give it back before the owner know what happened.

http://img407.imageshack.us/img407/599/img3307yj.jpg
http://img707.imageshack.us/img707/8472/img3308e.jpg
http://img710.imageshack.us/img710/7886/img3309a.jpg

Do you need anything?

İ wrote something wrong

WRONG>>But i cant see it My Computer(Right click)>M.......
RIGHT>>But i can see it My Computer(Right click)>M.......

See Troubleshoot: Windows Won't Recognize Your USB Hard Drive

Didn't worked anything of it. And I think i deleted all the data.