Is there a link to a physics editor that works with gp4

Is there a link to a physics editor that works with gp4 I've tryed the one for gp3 they say works with gp4 but I can't get it to work.
am I doing something wrong?

[www.gp4db.com]

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RELEASE => Physics (under FIA Technical Regulations)
MagicDatas? Setups? Pit Stop Strategies? Track Specific Performances? Up2Date GP?
Power Torque Curve? Where's this stuff? All download is available at ..

thanks!