I have a fairly old laptop (Dell Inspiron 1300) all in working order and has windows 7 installed on it, and want to be able to go online with it and it doesn't have built in wireless. Can I buy just any USB adapter to connect to my BT HomeHub, or does it need to be some specific make? Can't find anything online about it. As you can probably tell, I have not got the first idea about anything technical, so would appreciate any help. Many thanks in advance.