Attached Link: http://http://www.renderosity.com/viewed.ez?galleryid=82865&Start=1&Artist=haria&ByArtist=Yes

Caro, I may be able to assist I too bought SW Lingerie from Sara Wendy Olivera. Mine work, what you do is that in the material panel select the object the bikini bottoms in the material tab select bottom then change to object to a desired colour. In the Texture Map panel select the desired lingerie bottom. Increase the Transparency bar to maximum and select the the same lingerie bottom as in the Texture Map bottom. Finally click OK and hey presto!!! like this image !!