Hi, I'm having trouble with connecting my DS. I have broadband but no wireless router so I bought a Pluscom wireless adapter in the hope that I could use it from my laptop. I have tried setting it up about a million times using advice from all over different forums on the internet. I have tried using the windows zero to set up an ad hoc network as described in one post, yet it says unable to connect to an access point from my DS however when I connect like this my computer says its connected at 54.0 mbps. When I try and set it up the usual way my DS says it can't get an IP address... any help at all would be great as I'm so frustrated! I think I've tried everything...

Thanks in advance!

Well can't get the IP Address has do with the DHCP. You either need to setup your computer to give IP Addresses to other devices that you wish to get online, or figure out if the Pluscom wireless adapter has something on it that will do that for you. Now I believe the Wi-Fi USB Wireless adapter that Nintendo sells has DHCP client on it that will specifically give out IP address to the DS/DS Lite and the Wii.
I hope this helps you out.