Ella - I can't find a detailed manual for those billion routers - their site at
www.billion.com says they are on the CD, which is difficult for me to see. Is it possible to upload it somewhere where I could get it? Without that it is going to be difficult for me to help you.
The other alternative is to ask for help in the Computing forum - perhaps someone has one of these (or has more experience with this kinda stuff) and might be able to give help without the manual...