How to change s3slider size in daily theme

I'm using daily theme and I'd like the change the slider size to 400 by 600 on my front page.
Which files do I change?
(all themes, plugins, wordpress/buddypress are up to date/current versions)

I'd also like to add a similar slider to other pages of my site.
Since the theme uses s3slider and the code is already there - can I just add some code to the various pages and if so - what should the code be? Each slider will pull from different categories so they won't all be the same.

Thanks!
Ruth
http://www.bestallergysites.com/