Great thanks. Output of lsusb:
Bus 002 Device 002: ID 0bda:8189 Realtek Semiconductor Corp. RTL8187B Wireless 802.11g 54Mbps Network Adapter
For all drivers, no firmware from userspace is required for device operation. [Well, as long as it's not in userspace then
] - Debian wiki.
I've usually got the wired thing connected at the same time if that makes a difference.