1) not sure tbh. I run the spell checker, it seems to change the mistakes i make. I don't bother with Change All, since that's never worked for me on amy machine. I then check how it'll look on the blog using preview, and then i make any adjustments i need. When i clip publish it checks my speeling again, and it finds all the old mistakes it already supposedly put right.
2) My own. The round about theme, and plugins: 4Avatars, cformsII, Full Text Feed, Hotlink Protection, Simple Spoiler, Thumbnail Viewer, WordPress.com Stats, WordPress Database Backup, wp-cache, WP Ajax Edit Comments