Posted 22 December 2012 - 01:29 PM
I'm only a user myself in Linux but might be able to help you. I've fixed my own wireless when it fails but it's taken an hour or two if it's a new install.
First, who's the main branch of linux that your OS uses? Debian, Red Hat, etc.
What is the full name of the file you downloaded? It could be a tar, deb, zip, or executable and all install differently.
Do you know how to use "sudo" and the command-line?
At a guess you have a non-free driver required and need to manually add/update it after your last full update/upgrade. (There is ALWAYS a risk doing this will break your current setup. I lost my dual 3840x1080 monitor setup with the move to the current 3.7 kernel which no longer supports nvidia at the moment.)
From a quick read this seems to be a Debian based OS "PCLinuxOS is distributed as a LiveCD, and can also be installed to your computer. The LiveCD mode lets you try PCLInuxOS without making any changes to your computer. If you like it, you can install the operating system to your hard drive. Locally installed versions of PCLinuxOS utilize the Advanced Packaging Tool (or APT), a package management system (originally from the Debian distribution), together with Synaptic, a GUI frontend to APT for easy software installation. PCLinuxOS has over 12,000 rpm software packages available from our software repository."
Which means you can use the command line and apt, apt-get, and probably dpkg to install packages.
This should help get you going and the answers you provided should help anyone supporting you by giving you the right tools for your download.