It sounds like you might be using the sample welcome page from the VRD document.
If that is the case the 'Continue browsing' link is designed to open up a new browser window and direct it to your originally request URL when you first started the web session. Typically this will be your homepage of something similar.
If you look closely at the first page on Amigopod that you are redirected to as part of the association process with the Aruba controller you will see some additional parameters listed in the URL bar. An example is shown below
http://<ip-address>/Aruba_Login.php?cmd=login&switchip=172.16.0.254&mac=c8:bc:c8:d4:ae:2b&ip=172.16.0.247&essid=guestnet-X&apname=Cam_AP105&apgroup=MDAC-Training&url=http%3A%2F%2Fwww%2Egoogle%2Ecom%2F
What you will notice is the controller has captured the original URL requested when you first initiated a web request (in this case http://www.google.com) and stores this for later use in a url parameter.
It is this address that the sample welcome page is attempting to redirect you to when clicking on the Continue Browsing link.