hi

I have a wired connection, but I need a wireless for my PS3 to connect to the internet because it's so much more practical. I've been told I have to buy a wireless router in order to do this, and my internet provider have said that it will cost me £60. Now i know i can get a much cheaper one than that from PC world. BUT I used to be on BT broadband, and I still have the wireless hub thing, is there any way I can use that as a wireless router for my other internet? if so how?? because i've tried setting it up and I'm able to detect it on my PS3 but it comes up with "server connection"
thanks alot.