Thanks, Tom. I got (b) working with your plugin.
However for question (a) on the header logo, the plugin you attach above seemed to be the same as (b), so guess you attach the wrong one here, right? 🙂 I did a search based on the wordpress site and found this – https://en-ca.wordpress.org/plugins/wp-display-header/ <- would this works too?
Thanks,
christy