Tosh McCaber,
Requiring a password (WEP or WPA) is entirely separate from the router broadcasting the SSID.
If the SSID is not being broadcast, it will not appear in "available wifi networks". Period.
You have to manually add it.
You THEN need to supply the WEP / WPA password.
Even then you may not be done - the WAP may be set up to restrict the MAC addresses that are allowed to connect.
And finally, if the WAP / Switch is not set up as a DHCP server, you will need to manually configure the IP settings.
One last thought - are you sure that your modem/router is actually a WIFI access point?
SD