Thanks for this - environments set up to test this. Have you considered how you would handle say a software upgrade, for example, from Firfox 3.5 say to Firefox 4.0 - What would be the best process for this - I am considering setting up new discreet packages for new versions (new collection, adverts, ad group would also be required). But I'd also need to consider adding an uninstall program for the previous version into the new Advert.
Is there a better way?