underwater housing for sony P200

I own the sony P200 for 2 years now,I bought it when it first came out.Unfortunately the shop i bought it from told me that there is housing for it but when i went back a few months later they realised they made a mistake and even though sony had made housings for most previous cybershot models it didnt have one for this one.Is there a chance that a case of another model would fit or is there any other company that specialises only on housings that makes one for the P200? Here (in Greece it is also very difficult to find somebody with this kind of knowledge)