import com.adobe.serialization.json.JSON;

Hello

I am using Flex Builder 3 Trial Version, when I import com.adobe.serialization.json.JSON, the IDE gives the following error:

1172: Definition com.adobe.serialization.json.JSON could not be found.

I have seen that the library is @ http://code.google.com/p/as3corelib/source/browse/trunk/src/com/adobe/serialization/json/J SON.as?spec=svn83&r=83

Can I simply download this version of JSON.as and save it in my file system for the error to go away? If yes, where should I save it to?

Or what else can I do for this error to disappear?