Help me please...

Halo guys..I am desperate for a help right now.
I am new with VISTA.
I have just installed win vista business edition.
I use it together with my win xp.
I have an ABIT Airpace installed on my computer and a D-Link D-524 router direct to my DSL modem.
When I am using xp, I am connected to internet without having to set anything ( I am writing this with xp).
But if I use VISTA, I can't be connected to it.
How can I fix this problem?
Please help me on this please.....
and please be patience with me if you wanna explain anything...I am a newbe in this kind of things...
Pleaseeeeeeee..........................................

Well, since it works fine in XP, you know that your hardware is good... so now it's just a matter of getting your hardware to play nicely with Vista. Assuming the device shows up correctly in the Device Manager, it should be pretty simple...

http://support.microsoft.com/kb/928429

VISTA has recognized my wirelesscard and detected a network nearby, but it won't connect to it. It says " Connecting time takes longer than usual..................disconnected"

The card has 2 operating mocule mode. AP mode and access point mode, I don't know exactly what they are but I have tried to switch 'em around, but nothing seems to be working.

I don't use any user ID or password on my router, so it used to be so easyto connect to it since it is without any protection.

Halo...can anyone help me please ?