Thought id write you something cos i know how frustrating it is when you post something and get no reply.
Anyway, for what its worth i would look up a school called Caxton College, its in Puzol, about 15 mins from the city of Valencia and has a really good reputation. Im sure it has a web page so i would look that up.
a friend of mine from England has a 2 year old in private school in Valencia. It is an english school. If you want write him, .(JavaScript must be enabled to view this email address)