Is There a Solution for Installing GRTensorII on Mac OS X?

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Hi there,
I spent a lot of time to figure out how to install GRTensorII at my Mac OS X. I followed some OS commends from other website. Now I can do grtw();! but still can not load any predefined metric and the reason is that the address of the used metrics is not specified for Maple core yet! I have followed this following instructions but it didn't work.

http://www.barrywardell.net/research/grtensormetricsandosx#comment-29

Any experience or suggestions?

Thanks,
S.
 
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