Sky Salt split up in 2007. You can still purchase their CDs but when they're gone they won't be repressed. I think they have MP3s available on the usual sites.
I found a couple of old Sky Salt interviews. This one was done around the time of the release of the Off the Ground EP) www.sithspit.com/SkySalt/Interview.htm and this one was done around the time of the release of I Believe in Fairytales www.sithspit.com/SkySalt/XeniaChat.htm
I haven't been able to find out what happened to the other band members, only Xenia and Mark. They were playing with Voltaire and his New Wave group The Oddz occasionally. Xenia also released another CD under the name Doe Deere called Supernatural (which is 80s influenced electro pop).
They are no longer doing their club night Maskara and Xenia is not designing clothes anymore, instead she has been concentrating on her make-up range, Lime Crime (best known for its bright colours) which is now stocked in Space NK stores among others.
She also has an online blog where she posts make-up tutorials and more at http://www.doedeereblogazine.com/
and she's on Twitter www.twitter.com/limecrime