I've been puzzling over this for a while, Rich.
WC claims to be uploading - it's currently showing 1087 reports sent and the same number acknowledged.
However my station page at
http://openweathermap.org/station/202452 shows nothing received since September.
I've tried stopping and starting and working through the OpenWeatherMap site, but nothing makes it work. Since I find their site deeply frustrating and very hard to navigate, I've given up trying to resolve it.
Every other site I use works fine, so other than a desire to solve the problem, I'm not too worried.
John