Apple today released MobileMe Control Panel for Windows 1.4 (2.3 MB), bringing support for connections through proxy servers.
Required to set up and manage MobileMe syncing and manage iDisk settings on a Windows PC. This update provides support for connecting to MobileMe through various proxy servers.
More information about supported proxy configurations in this support article.
Apple has also posted a related article on its MobileMe News page highlighting the release.