making a bodiced petticoat

At home ive got a pattern from Sense & Sensibility..the Regency Gown..At april ,Monique from the Jane Austen Club Nederland, organizes a Regency Ball. I'm going with my mother. The fabric i'm using for the gown is white cotton, but it is transparant. So i was searching for a stay with a chemise .And than i found this one..al you need is the Regency Gown pattern..

I love there website because she gives us online photo instructions!!!.. http://www.sensibility.com