In my town there is a free wifi service in the town centre (I don't have anyother kind of Internet access in my flat). I have a Thomson TG123g Wireless USB Adaptor which I have attached to my pc. However the signal in my flat is very weak (even near to the window).

How can I get a boost the signal, someone talked about a "range extender" but someone else said that this would only work if it was part of the Internet access suppliers network. Alternatively could anyone recommend a better wifi network adaptor, please?