If I may recommend if you have the ability use a cabled connection to setup your internet. When this is working focus on getting the whole lot wireless.
When you have a wired connection go to the netgear configuration page (probably
http://192.168.0.1, this is my Netgear setup page

) and login using the admin user name and password. Check the manual of your netgear for instructions. I think it should be setup pretty quickly by default.
All of this is assuming your modem actually has a working connection. If this is not the case you should connect to it
directly (i.e. don't use the netgear router) and setup your connection according to the instruction you should have been provided with by your ISP. Ones this is working, connect your wireless router to a LAN port on the modem and plug it into the WAN port on the router. Consult the routers manual on how to set it up from there.
To be honest I think it is a very clumpsy setup and with the price of modems being so low these days I would probably buy a wireless ADSL modem/router off Ebay or something and make all of this a lot simpler.
Just my 2ct. I hope I can be of any more assistance but I would like some more information about what equipment is involved.
Good luck.