U-lite Linux

I downloaded and installed U-Lite today on an old laptop and have a problem with my Wireless Network connection.

My network adapter is a Realtek RTL 8187 Wireless 802.11G 54MB/S USB 2.0 network adapter.

Wireless Connection in the Network Setting states "Roaming mode enabled" but no Wireless Networks are detected by my Network Manager Applet.

How can I make sure that the Wireless USB stick is detected and installed by the system?

I don't know if this is helpful, but the green light on my usb adapter flashes for a second when I connect it and then goes off.

The adapter was working fine on an Ubuntu 9.04 installation on the same pc.

Any help appreciated!

Thank you

Update: I noticed that when logging in there is an error somewhere stating that the rt8187 driver could not be registered..