Wife's hen party = camera disaster

My wife took our camera on her sister's hen party and to my dismay dropped it in the toilet! When I got home (after the stag night!) I was convinced that it would be a good idea to dismantle the camera in order to dry it out. The next day not only could I not remember which screws went where but when I finally put it back together ( a few screws left over mind), the bottom right hand side of the camera case wont sit flush for some unknown reason and of course it doesn't work properly. When I turn it on I can only view the pictures on the memory. I try to put it in photo mode but the screen is black, I put it in scene mode it starts taking numerous pictures all of which are black. I put it in video mode it starts recording and won't stop. Anything it takes is black when viewed. Is this camera completely distroyed? We've only had it six months and I realyy like it. What would be useful is a photo of the inside of the camera with the cover off but the screws in place if anyone has one I would be most grateful. Many Thanks.