You can only mount it in 2 positions on AM3, not 4,
I heard the D14 and Silver Arrow will both mount facing in all 4 directions.
Well starting with the TX3 it only fits two ways also
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And the same for the Arctic cooler, those metal prongs in the picture are the AMD fitments.
So it still only fits two ways then.
The fan being able to be turned around is the same as rotating the whole cooler 180degrees.
If the fan cant be fitted blowing up/down and left/right then its the same as other coolers.
There's at least one cooler which will fit on AM2/AM3 etc. and allow you to have the fan blowing front to back.
Scythe Ninja 3 High Performance CPU Cooler
Can you find anymore?