How do I use a USB WiFi dongle with a MacBook?

Question

I recently acquired a USB wifi dongle and downloaded the appropriate driver. When plugged into my MacBook it will connect to my Graphite Airport base station. I can even use Airport Admin Utility to change setting in the Graphite ABS with this USB dongle.
The driver software also included a 'client utility' which I use to get the dongle to function with the MacBook. It also required adding the dongle to the list of network [ports via the Network Preferences in OS X.
But I do not know how to use it to access the internet through the ABS. My ABS has a 56kbps dialup modem in it which I use with the MacBook's internal WiFi card as my way of accessing the internet normally. I would like to know how to use this new USB wifi dongle to do the same thing though.
TIA

Answer 1

If you noticed on my jpg of my settings the very top left window shows that the MacBook thinks the dongle is indeed connected to the internet. In actuality the dongle is only connected to the Graphite ABS.
My thinking is that the Graphite ABS (Apples first ABS) is simply set up to listen to Apple's own Airport card when it comes to the ABS' internal 56k modem. Maybe someone can tell me from experience that a Graphite will listen to a USB wifi dongle?
A bit of my personal philosophy... Apple stuff generally 'just works'. It does not require a lot of windoze-like 'jumping thru hoops' to make it work. So when it does not 'just work' I tend to think that it is because it can't.
Didn't try turning off the firewall, but if it requires that I would not want to use it anyway.
Yes, the ABS does distribute IPs, or at least something does because they are different from one time to the next.
Access Control is on, but again, I require that so it would have to work that way for me or it would have no value to me.
Again I will say, I certainly appreciate your help BDAqua. But I am starting to think we may be trying to do something that cannot be done unless you know otherwise?
Again, I would like to ask, is there is anyone using a Graphite ABS with any USB wifi card/dongle?