Displaying ASP Classic errors in IIS7

Hi,

I have an asp classic that i'm migrating to a new dedicated webserver running iis7, i need to display the error, error line, etc for debugging but all i get is:


500 - Internal server error.
There is a problem with the resource you are looking for, and it cannot be displayed.

I've tried creating a web.config file and putting it in the websites folder, and changing the settings in IIS under ASP > Compillation.

The web.config i've created in the websites folder is as below:

<configuration>
<system.webServer>
     <asp scriptErrorSentToBrowser="true"/>
     <httpErrors errorMode="Detailed"/>
 </system.webServer>
</configuration>

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What am i doing wrong? I've read through a lot of forums and it appears this should do the job..

thanks,

Sam