Surprisingly few - she must be doing photo shoots only. Bing search comes up with:
http://hosted.met-art.com/Full_met-art_ur_45_998/?pa=434026 (the one you probably found the original pic on)
http://ruslana-d.bravoerotica.com/
http://www.sexylabia.com/met-art_covers/metart-ruslana.htm (This...