The cleanly installed windows 7 is not reading my external hard drive

I have a WD5000D032-000 pocket 500 Gig. It worked on my vista 32 bit home. I updated to windows 7 home premium 64 bit edition and now my computer can't read it. It is displayed under Device manager just not My Computer

Does it have a drive letter? Please provide a screenshot from Disk Management.

http://www.sevenforums.com/tutorials/9733-screenshots-files-upload-post-seven-forums.html