unfortunately, because often wireless cards have different network interface names than an ethernet card, the software will not be able to detect and set up a wireless card automatically, no matter if it's the internal or external card.
just an FYI. If you use the cd version to install linuxmce, like I had to with my newest motherboard, and you have the wireless card setup and running on kubuntu first, Linuxmce will pick up the wireless card and use it,
I didnt think it would work, but it did for me. Took a wireless nic named ra0 and allowed me to make it the external interface during the installation. It worked fine after linuxmce install.