Yup, that scarf don't belong to Shiori. Beside, Shiori wear a shawl.
Anyway, for people that downloaded SS-Eclipse's release. Here's an alternative updated sub file, there are some changes to the Typesetting / Timing. This isn't the official SS-Eclipse v2 release, so don't bug them about it.
Updated to include fixes Mentar mentioned: Full episode 1 to 18 translation package
DivShare File - [SS-Eclipse]_[R]_Kanon_2006_Subs_1-18v2c.zip - Multi-color dialogue version.
DivShare File - [SS-Eclipse]_Kanon_-_18_(h264)_[AF879877].rar - SS-E default color version for episode 18 only.
If there are problems or errors, let me know, or just correct them yourself.