From the sounds of things, it sounds like when you created the Vuze application in your router, you attached it to the first device in the list, which will come up by default. What you need to do is select that device, then remove the ruleset from it so that you can attach it to the correct device.
That being said, without having a way of accessing the firmware (or at least knowing the way that it's laid out), it would be really hard to say exactly how to do this. In most cases, if I'm not mistaken, you will see a list of the devices on your network when you get to the area to create such rules. If this is the case, make sure that you select your computer from the list BEFORE you start editing the rules.