I just installed Wampserver 2.1 on my windows 7 64bit computer and the icon that should turn green, turns orange, saying that the server is not ready.
The result is
C:/wamp/alias
and look your alias maybe you change DISK D:\ to K:\
D:\
K:\
"Alias /virtualram/ "D:/virtualram/".
Do not change port 80 to 8080!
gl