Wireless Access Point Problem

i recently got one of these

dabs.com - PC Hardware, Components, Software, Digital Cameras, MP3 Players

is it possible to connect it to my computer via my network card and share the internet connection that way? i don't have a router to connect it to.

when i do this i keep getting a message saying there is limited or no connectivity. on my brothers computer in the other room his network card picks up the connection but won't let me connect. i have internet connection sharing turned on and have set the ip address to find automatically.

the phone line is connected to a dsl modem (sagem fast 800 e2l pe) which is connected to the wireless access point (and my computer by usb). the wap is connected to my computer via the network card.

any tips?