While I can't tell you exactly which rooms have been smoking rooms, I do have some information for you. In searching for older POP maps, I came across some interesting information. I found my 2002 map of CSR. It says that all restaurants are smoke free. Then I found my 2003 POP documents and they say "Indoor locations at the WDW resort offer a smoke-free environment". The 2004 documents also have the same statement.
Bottom line, it looks like the rooms went smoke free at WDW atleast by very early 2003, or atleast at POP. I hope this helps.