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#11
The spec sheet for your wifi card states that it's compatible with both 802.11b and 802.11g, so you shouldn't have a problem with the router that you state is equipped with the same.
What is that "cFos Speed for faster Internet connections (NDIS 5)" in the properties window in your screenshot. Looks like an add-on that's supposed to do exactly what it states in the its title. You might check on its properties or try to connect with it disabled.
In your screenshot, what happens when you click on Home in the dialog in the lower right corner?