Wi-fi/airport, Before And After Connection Issues

Slashh!!

Registered
Before I got Charter cable dsl and an Airport for home use on my ibook g-4 laptop,I recall being able to easily connect to wi-fi locations. Since then, I'm not able to join any wi-fi networks when I'm out and about. What's the deal?

I'm running osx 10.3.9
 
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