Stylisation overridden since update.

Hi,

So I updated my Nivo Slider plugin this afternoon, and am running WordPress 3.5.1.

I had a customised stylisation for the Slider previously, though that has since been overridden by the latest plugin update.

I was wondering as to whether there is any way to reclaim those same settings within the plugin? Or, failing that, whether anybody would be able to help me revert to thumbnail sizing 60×46 px and make the caption show in my American Typewriter font?

Gallery example here:

http://dotsanddashes.co.uk/gallery/john-grant-rough-trade-east-march-12th-2013/

Needless to say, my knowledge of CSS is unfortunately highly limited so apologies in advance..!

Thanks.

http://wordpress.org/extend/plugins/wp-nivo-slider/