What would the URL be to link to the Google Apps Sites Start Page that allows you add a specific gadget to your page?For example, if I want to add a widget to a regular iGoogle page, I use this:http://www.google.com/ig/adde?moduleurl=URLTOMYGADGETXMLGOESHEREHowever, I need to know what the URL would be for Google Sites Start Page.  I have tried all sorts of variations on that URL with the domain of our Google Apps page, as well as just about everything with partnerpages and I can't seem to find it.Edit: Alternatively, being able to add a section of gadgets to the gadgets directory would be sufficient.
URL to add gadget to Google Sites Start Page
google apps;google sites;gadget