The modem needs to be an ethernet modem as opposed to USB. Cat 5 cable (straight through and not crossover) from adsl modem to router. router must also have a wireless access point built in to broadcast signal to wireless cards.
The router you refer to is compatible with the cards - it is 54g - same as the cards. It is the modem that is the problem if it only has a usb connector, you need ethernet from modem to router.