Thanks for write Danleff.
Yeah, I looked their website but no technical information at all. I have wrote to tell me what can I do, maybe in a few days I know something.
Some things:
If I boot with 2.6 kernel, and I do dmesg, only USB pendrive info appears.
If I boot with 2.4 kernel, and I do dmesg, I see that prism2 module is loaded, but iwconfig does not recognice nothing. Maybe because I don't know how to do iwconfig with a USB, not pcmcia. Maybe iwconfig is for pcmcia or pci, not USB.
KDE info shows nothing but and ACER device.
Bye