Antclick install problem

I installed Antclick successfully and then I registered, defined/guessed system preferences and created a site on my home PC to develop layouts before uploading to my antville.org site.

The link to the system site like antville.org didn't work so I set it to http://localhost:8080 in the system preferences. However, once I posted my first story in the site I had no way of getting to the system/server preferences anymore. I rebooted the server but still couldn't get into system preferences.

Obviously, I have screwed up the settings, but do I need to delete the antclick install and start all over again? Secondly, to prevent me from making this mistake again how does one switch from system/server mode to site mode and vice versa?

I discovered somebody else made the same mistake, but they never got an answer. Please answer me. Thanks.