Thanks Wondering Why and Birdy.

I am completely stumped. When I try to search in Limwire it looks like it is searching for the audio file I want but I don't get any results. I have followed all instructions; ensured Windows firewall is turned off; made sure the listening port is 6346; added a packet filter in the router; the router does support UPnP. Thanx fo ryour help but I think i am destined not to download from Limewire anymore. The weird thing is that it worked fantastically until I got my router.

That sounds like either a Java or skins or Graphics card problem. Which version of Java do you have?
Which operating system are you running?

Is the window part invisible or are the buttons missing. See if you can drag the bottom part of the window & drag it down.

tappit,
If you're convinced it's your router, go over to the Billion forum & see if they can give you any hints.
http://www.billion.com.au/forums/lofiversion/index.php/
Because your model's not listed with portforward, I'm just not too sure whether you can use another model's port forwarding instructions

Thanks Birdy - I will try that site.

Thanks everyone-I'll try the port forwarding when I feel confident or desperate enough !!

What you could do is just go through the port forward instructions for the 7402VGO & have a look at them. You don't have to do anything to your router - just have a look through & see what's involved. Then if you decide to have a go, get on the Billion forum & see if those instructions will suit your model too, someone else there might have some good advice

Good luck!