Incorrect Base URL additional port

Does anyone know how to change the base url once you have installed yacs?

The URL of my installation is http://dev.tsv.catholic.edu.au...s/view.php?id=1 but for some reason yacs keeps adding an extra port number into the url and I get http://dev.tsv.catholic.edu.au...s/view.php?id=1 which gives me a page error. Has anyone had this issue? I have tried changing the shared/parameters_include.php file but it does not seemt to work.

Thanks