Up until now, custom annotations which were made in Expression Media on Windows machines were not able to be seen in Photoshop. A file is now available which corrects this problem. For information on how to how to obtain and implement this fix, please review Microsoft Knowledge Base Article 948891.
Also, for those of you experiencing Nikon D3/D300 issues, duplicate folders when running QuickTime 7.4 (or later), or junk characters in custom fields with Expression Media Service Pack 1, relief is coming. Please visit the link to read the statement from Expression Media's Principal Group Manager.