BT Broadband SetUp (ADSL Modem + Router)

You have to treat each bit of kit seperately, the modem has to run in PPPoE mode to connect to BT, if it has a DHCP server built in, you can use this to configure your wireless router, with the gateway set as the 'hard' address of your modem,
eg. Modem front end (BT facing) PPPoE, back end 192.168.1.1. Router front end 192.168.1.2, with gateway set to 192.168.1.1 with all client's handled by the modem's DHCP. If not, set the modem back end address as 'hard', configure the router's gateway to this and let it handle the clients by itself using DHCP
Cheers,
10forcash
ps. not read the documetation 'cos I couldn't be ar$ed, but the principles are the same whatever the kit is, I use an Eicon ADSL modem with a Linksys wireless router and a switch running the wired connections off that
good luck

PPPoA is a variation on the PPPoE theme......works on mine a treat
Cheers,
10forcash

The difference being....
Ahem, PpPoE treats connections as if the DSL were connected to a switch, PPPoA treats connections as if it were connected to a multiplexer (DSLAM), the access protocols are essentialy the same, some DSL modems have the option of either, some one or the other although both protocols have enough commonality to operate across either type of link without degredation in performance, the only tell tale sign will be an extra second or two on initial negotiation.
cheers,
10forcash

Coulterp,
don't want a pi$$ing contest, just pointing out that PPPoE will work on a PPPoA service provider
Cheers,
10forcash

Of course.
i'm assuming Simpsod8 has used the parameters, usename and gateway (hg??.bt??) supplied to him/ her
Simpsod8, have you configured your router to use the netgear as the gateway?
try configuring manually instead of using the wizard.
Also, don't forget coulterp's advice regarding the different network addresses
cheers,
10forcash
[edited for 'df' alcohol abuse spelling]

One last try,
Rather than plugging the ADSL modem into the WAN side of your wireless router, have you tried plugging it into the WAN side and using the netgear in router mode, this will provide DHCP to the LAN and wireless, making sure you disable it on the Dlink first. The Netgear will provide the NAT and security for your connection.
Cheers,
10forcash