crossdomain package

I have a package which is on a different domain to the one my swf is in. How can i call it?... I have already set up the cross domain xml policy file on the other domain. but how do i import the package. Currently i have it like this

import mypackgae

but this is when mypackage is in the same folder... but how to do it when it is on www.otherdomain.com/mypackage? :confused:

Packages have to be in your classpath, so I don't know if they are allowed on other domains. Thats about all I know though sorry :(