You're not allowed to, you agreed to this when you downloaded the software.
However, if you use php you can make a script for your own website that de-uglifies the looks of it all.
Look up php stats in search or visit www.hotscripts.com
for freebies to try.
This isn't actually a Shoutcast problem so you'd be better asking people on php forums for help if you get stuck. Be aware that your webspace must have php hosting or it won't work.