Whoever told you that Greece is "getting better" has been plainly lying.
Here's what the IMF really thinks as of January, 2013 (
http://www.imf.org/external/pubs/ft/scr/2013/cr1320.pdf):
"The alternative of euro exit would quickly correct exchange rate overvaluation and eventually reduce the debt overhang through default and a
subsequent comprehensive restructuring, but would likely lead to severe economic disruption."
"Heightened implementation risks and lingering euro exit fears are expected to depress demand for privatized assets, weighing on sales volumes and prices"
"Nonetheless, risks remain significant. Stress tests single out risks from delays in reforms, more adverse macro dynamics, and non-implementation (leading to euro exit)."
"Important in this regard, Staff believes that recent evidence that the authorities are determined to persevere with the
program, despite a difficult political situation, and that
European partners are continuing to provide unprecedented support, will gradually convince investors that the risk of euro exit is dissipating, despite the high debt levels entailed by the gradual approach to debt relief."
"Greece will not successfully restore robust growth while remaining in the euro area without deep structural reforms."
Sounds all very positive, doesn't it?