I also use cable and was amazed that I had to do nothing at all to get
online. It just worked. It might be the your wireless adapter isnt seen
linux. Can you see your router though the URL for configuration? If not,
your card probably isnt setup.

How do I get Linux to see my adapter? And how can I see my router
through a URL? How do I setup my wireless card on Linux? Should I
install the software, on linux, that came with the wireless card?

I just set up a linksys router for a wireless set up at a local real
estate office so I have a little familiarity with this.

I installed XP Pro and then installed the software. To configure the
settings for the router I went to http://192.?.?.? (forgot the rest) and
that is the admin screen for the router.

Now for linux (and remember Im very new to this as well so Im assuming
and guessing a bit) since you wont have any software to install, perhaps
you dont need any. My cable modem just installed and was working right
off. I was totally amazed. What you might try is getting out your paper
work on the router and seeing what the admin url is.

If you send me your model number I can tell you more. (of the router)

I installed Ubuntu .. and trying to install some test
driver (Hello)

When i run the command

gcc -D__KERNEL__ -I/usr/src/linux/include -c hello.c

it gives the following error....

/usr/include/asm/smp.h:73:26: mach_apicdef.h: No such
file or directory
can any help me in this matter..
Do i have to compile the kernel again for this