Wireless network security
Since the OP will be setting up the security, it's quite possible to set the router up in such a way that he cannot access the router at all - unless he has access to a laptop which can link via ethernet cable into the router to "adjust" the incorrect wifi setting.
If you haven't got that laptop, then all you can do is to reset to manufacturer's settings and do the whole setup all over again.
I've seen software that requires SSID to be broadcast. I must say that most of my neighbours do so - encrypted or not. Broadcasting your SSID does not reduce your security by much.
You seem to have every possible security setting.
If your PC can take it, then WPA2, WPA, WEP in that order.
Probably time to skim through Wikipedia.
If you haven't got that laptop, then all you can do is to reset to manufacturer's settings and do the whole setup all over again.
I've seen software that requires SSID to be broadcast. I must say that most of my neighbours do so - encrypted or not. Broadcasting your SSID does not reduce your security by much.
You seem to have every possible security setting.
If your PC can take it, then WPA2, WPA, WEP in that order.
Probably time to skim through Wikipedia.
I'm so dumb!
It's not necessary for your router to be plugged into the BT socket when you do the configuration!!!
My teeth are always on edge whenever I change a setting on the router - but now I know different...
All you need is a power point and a piece of ethernet cable.
Once you've got it set up you can connect wirelessly to check that it will talk back to you.
Then you take it back to it's home by the BT socket and all will be well.
Don't forget to take a printout of the settings [in case you need to do it all over again]
It's not necessary for your router to be plugged into the BT socket when you do the configuration!!!
My teeth are always on edge whenever I change a setting on the router - but now I know different...
All you need is a power point and a piece of ethernet cable.
Once you've got it set up you can connect wirelessly to check that it will talk back to you.
Then you take it back to it's home by the BT socket and all will be well.
Don't forget to take a printout of the settings [in case you need to do it all over again]
Sorry to but in. I have wep enabled on my router but whenever I order or buy something on line where I am going to be entering card numbers etc I use the main pc which is connected to my router by a ethernet cable. The router is still allowing the other pc's in the house to connect wirelesly while I do this. Have I got this correct that my details are safe by doing it this way. 
AFAIK If you are using "secure access" - a https site (with a little padlock symbol), then you are secure, because all data is encrypted end to end.
http does not do this!
http does not do this!