Hello,
No, Inquisit 2 doesn't support multiple questions per page. As it sounds like you've discovered, Inquisit 3 does.
-Sean
You can't include a link in a trial, per se, but you can display an HTML instruction page that includes a link to another web site.
You can also configure Inquisit 2 Web to redirect to another web site after an experiment is complete.
When you go to http://www.millisecond.com/myaccount/webscripts.aspx to register a new script change the settings of a script you've already registered, one of the choices presented by registration tools is the "Finish Page". Here you can specify a url that Inquisit will redirect to when the session is complete.