why does the Sourceforge link say 0.5.2 for win 32?
Fixed.
the choices below don't indicate a 0.5.3 win 64 bit version as far as i can see.
Win64 is not, never has been, and is not planned to ever be, supported... Win32 builds should run fine, since Win64 isn't really pure 64-bit (it's hybrid; both 32-bit and 64-bit)