[Plugin: BM Custom Login] Need Help!!

Hi there your flickr photos of this plugin look amazing! I am dying to use it however I cant seem to change the “Your Logo” text? I.e put an image in there as can be seen here: http://www.flickr.com/photos/tribalplague/6821170587/in/pool-446919@N23/

I can make a background image but cant seem to figure out how to change the actual sign in box? Can you please help?

Many thanks,

Barry

http://wordpress.org/extend/plugins/bm-custom-login/