You can only create rule for TVP ports but not on UDP ports?Yes, it is possible. You can see in the image below that you can configure protocol as TCP and UDP. Make sure you are connected properly to the administration interface and then add a new rule and it should work.
Traffic Shaper XP is a free bandwidth limiter for Windows 2000, XP and 2003 Server. It combines high performance traffic shaping with the ease of use and flexibility to keep your network free of congestion. The interface is very easy to use and the tool can be very helpful.