In the SWAT file located in etc/xinetd.d/ make sure that un comment out the following line:
# disable =yes
second whether or you have a LAN make sure:
only_from = 192.168.1.0
Finally make sure that your host file is intact and it should look something like this:
127.0.0.1 MyLinuxBox localhost
From here you can just type into your prefered browser http://MyLinuxBox:901
But I suggest you install Webmin - much more efficent way of taking care of this stuff.