I am moving into a new house and am going to need to make some repairs and do some upsdating. The bathroom is very small and has tile on the walls. The tile is not ceramic, but it seems to be a plastic of some sort. I want to remove them and replace with either new ceramic tile or just wall paper. How can I remove the tiles without tearing up the existing wall? Or is it even possible? Is this something I can do on my own or do I need to seek professional help.