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On PHP 5.2.17 I don't have any problems, using SmartObject 0.92
I had an issue on PHP 5.3.10 while using a different SmartObject updated by Ohwada from Japan that supposed to be updated for PHP 5.3, but I am not sure about it because of these issues, so I'll have to do some more tests on it, or just update the 0.92.
There is also another SmartObject version 1.01 floating around, so I'll test it as well.
But for you, since you have PHP 5.2.17, Smart Object 0.92 should be OK for now, and as I said, it worked for me "out of the box"
I just sent you an email with access to my Website, so you can see it for yourself.