Well obviously what we have in this country is capitalism. Vietnam has capitalism as well. So does England. Heck even China is approaching what could be called capitalism. There is no Capitalism with a capital C. There are merely various capitalisms.
At the heart of this argument is the difference between ideal types and reality. Some hold the Smith view of capitalism as the only ideal type for capitalism. Anything else demands another name. This is simply semantic hairsplitting. There will never be a real life incarnation of Smith's capitalism -- so making it the benchmark to judge whether an economy is "capitalist" or not is moot. What exist in the world are real-life versions of capitalism. And there are many of them. They are certainly not the same, but they are all capitalism.
(As an aside, I would offer the theory that economies and finance are socially constructed realities. Since all societies differ, their forms of economy will differ. This also means that what works well for one society may not work well for another. Hence the failure of exporting American capitalism to the developing world.)
I'm currently finishing Joseph Stiglitz's Making Globalization Work (I got it used for $2.25 on eBay and little did I know was signed by the author :O) and then moving onto James Childs's Greed (connecting the economic and Christian ethics dots) before hitting thesis reading full time. In his preface, Stiglitz says much more eloquently what I've been trying to say:
There is also a growing recognition that there is not just one form of capitalism, not just one "right" way of running the economy. There are, for instance, other forms of market economies . . . that have led to quite different societies, marked with better health care and education and less inequality. . .. And when there are alternatives and choices, democratic political processes should be at the center of the decision making -- not technocrats.