Looks like step 37 and 39 are duplicates:
Code
		ALTER TABLE w3t_Posts
		DROP INDEX w3tPostsindex2

Actually 39 isn't a duplicate, the DROP INDEX line is:

DROP INDEX w3tPostsindex2

???

Should that be the same as step 37's:

DROP INDEX {$config['tbprefix']}Postsindex2

?

- Allen
- ThreadsDev | PraiseCafe