Reinstalling problem with new hard drive

Hello, a week ago, my hard drive broke on my XPS m1530. I called Dell support and they told me that they'll sent a new one.
Today, I received the new hard drive. I installed it on the pc, installed window vista home premium. (This is the 1st time that I install a computer)

Then, I tried to connect to internet by wireless and it failed. It said "This computer does not have a wireless network adapter installed and configured" However, I don't have any disk for installing wireless network adapter. The pc had everything installed when i bought it.
I also noticed the graphic card monitor became "(default monitor) on standard vga graphic adapter". Im sure that I had a geforce 8600 graphic card when i had my old hard drive. So, Im guessing I did something wrong or the pc don't recognize it. Can anyone please help me with the wireless and graphic card problem?

 

Go to Dell's website and download the drivers. I suggest you start with the wireless card then once that is installed you can use that connection to download the rest onto your computer.

 

Oh, and which driver for wireless I should download? There's like 5 of them.


Edit: Wow, Im so dumb. It's all fixed now. Thank you!