I attempted to update from 6.00up50 b4786 to 6.00up55 b5087 (downloaded iso), but as above I just got stuck at the 'Upload in progress. Please wait.' message. Also, whether related or not, clicking 'check' in 'Update downloader' panel I just get 'Error: Unable to connect to update server'.
Any ideas? I know I can boot of CD, etc and am currently viewing the referenced video.