The AccessPoint is the landing page of the QlikView Web Server. It is not a QlikView model that can be switched from AJAX-mode to PlugIn-mode.
The default path for AccessPoint is configured in QEMC > System > QlikView Web Servers > QVSW > AccessPoint. If you have a different web page that you want to use, this where to change it.
Also, if you want IE Plug-in as the default, you can change the Default Prefferred Client on the same screen.
Hope this helps,