The Dutch Air Force operated them for a time after the war, as did the French in Indo-China. The Irish Air Corps purchased a few, including some two-seater training conversions, and some of these still survive.
Un-shocking Update: They got nothing.
After finding nothing but electrical cables and water pipes, the team cancelled a news conference.
Yes, they were a special case along with England, Sweden, Norway, Greece, Czechoslovakia, Italy, Egypt, India, Burma, with many seeing combat into the 1950s.
Excerpts: “The search for Spitfires was rooted in persistent rumours that began among servicemen in ‘the bars and canteens of Southeast Asia’ as early as 1946.”
Gee, I’m glad not every bar rumor you hear around here is acted on, or else there’d be some mighty broke fellows around. More than already, I mean.
“It added that no surviving witnesses had actually seen planes being buried and that its research in British archives had failed to produce any evidence of the arrival of the aircraft in Burma in the latter months of the war.”
That’s odd. Didn’t other stories say they did talk to eyewitnesses, including one in his 90s who was on hand, a Stanley Coombe, pictured in the link above?
“But a local businessman involved in the project, Htoo Htoo Zaw, on Saturday vowed to continue the planned digs in the northern city of Myitkyina and Yangon airport, signalling a split within the team. ‘We haven’t started any digging yet. So how can we say for sure whether there are Spitfires or not?’ he told AFP.”
That’s the spirit! 
I don’t have the heart to go back and read all of this thread, but, am I right that the story morphed from the Spitfires being buried in the desert to being underwater?
I have a yard. Since there might be a Spitfire under it, I’m gonna start looking for a sponsor to fund an excavation.
I await the production of Indiana Jones and the Cave of Spitfires. It’s a natural.
Ya never know!
Next to Spitfires, discovering a businessman named Htoo Htoo Zaw is a pretty close second, is it not?
Well there is a footballer here called fui fui moi moi.
The May 2013 issue of Aviation History magazine has an article on it. According to it, things aren’t looking very good for the entire enterprise. I just checked and the article is NOT available on-line yet.
Yz