Linux does not detect wireless modem

Thanks Rubberman for redirecting me. I'll pop in the coffee lounge shortly

Hello, I am new to Linux and cannot get it to detect my wireless modem which works with three other pc in the house (with vista/XP OS). My HP mini with Suse Linux enterprise 10 sp1 stopped detecting wireless networks two weeks ago and I cannot find any solution. This mini did come with an HP help CD but no CD drive. The HP disc does not help me. Most forums give coding but I don't even know where I should type this! My guess would be in the Root folder but this has a cross on it which does not allow me to open it. I've downloaded NetworkManagement to try and reset the system to its original specification but It won't run the application either. Is there anyone patient and knowledgeable enough to help me walk through this. Thanks in anticipation.
Thanks to Rambo and Reed.
u-name and lspci did not return anything.

the dmesg output which I copied on the former site, will not copy on this site. It returns the following message though there are no images:

You have included 7 images in your message. You are limited to using 4 images so please go back and correct the problem and then continue again.

Images include use of smilies, the BB code [img] tag and HTML <img> tags. The use of these is all subject to them being enabled by the administrator.

By the way, I dont know how many times I've reset the clock, but it always gives the wrong date and time!

If you haven't done so already, read the How-To linked to below, and post the info that it explains how to find.

Wireless Setup - Start Here

As for the commands not working, you may need to use the entire path to the command. This is explained in the How-To.

Code:

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/sbin/lspci

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You also may need root privileges, so get that by using the su command first.

Code:

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su <enter>
Password: <enter root password here>

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The root password will remain hidden as you type it in.

As for the image errors while posting. This most likely is referring to the "smilies" or emoticons. You are only allowed to use a maximum of four. Sometimes it misreads the command output that you post, and inserts smilies. You can disable this by checking the box below the spot where you enter a new post. Where it says "Disable smilies in text".