I have updated my Flickr Upload app for Windows 8.1. This release focuses on tidying up some issues from the last release. There are fixes to improve sign-in with Flickr and fixes to the embed code generation for posting photos on a blogs or web sites. The search feature has been improved.
Thanks to everybody that has given the app a try, I am planning to add new features to the app in the next release. You can find the app in the Windows Store and its free!