I have had exactly the same problem… Using Windows 7 64 bit home edition.
I tried calling customer support and after trying for a while with the Rep, he said he would have to call me back in a few minutes. that was a week ago.
I can find the WD Live everywhere else - on Xbox on ipod etc etc Just cannot map the network drive so I can easily access the public folder. WD Link doesn’t work and you can’t do it manually as it doesn’t show on the network.
Any ideas or is this a Windows/WD issue that both companies are ignoring?