I promised a while ago that I will release a new version of my File Logging plugin for Selenium IDE with Unicode support. All those of you that have been requesting would be quite happy to hear that this release includes Unicode support. By default the Unicode support is off, you can change it to your desire from the File logging pane in the options dialog. You will get it automatically when AMO approves it. If you want it right now, you can get it directly from the version page on AMO.
Let me know if you like it.