1. Well, you can't entirely get away from task panes, and you don't
necessarily want to, but the article I pointed you to tells how to
substitute the File New dialog for the New Document task pane and the Format
Style dialog for the Styles and Formatting task pane. It also pointed you to
an article that tells how to avoid the Mail Merge Wizard (another task
pane).
2. Smart Tags can be removed using the Smart Tags tab of Tools | AutoCorrect
Options, and I thought I had turned this feature off for the entire app in
Word 2002. Now in Word 2003, I'm finding that every legacy document I open
acquires Smart Tags again, and they have to be explicitly deleted for each
specific document. Arrgghh!
3. Turning off balloons on the Track Changes tab of Tools | Options (as I
believe was discussed in the article) should be effective (they aren't
displayed in Normal view in any case).