A fast install of XP would show just that. It's new so ask them to do this again but install the motherboard drivers first then all the other drivers then finally any helper apps to control the wifi and more.
This is not trivial and your question tells me you don't know what you are in for.
Example of 10 and more drivers at http://forums.cnet.com/7726-7587_102-2699006.html
I do not have that install procedure which is why you want to get whoever you bought it from to fix this.
I just bought Acer E1-531 and I face the following problem:
there are no "Network adapters" category in device manager section in Windows XP.
I've tried to install drivers for Atheros network card but I get the message: "The network adapter is not recognized. Please install it again."
So, I don't have neither an Ethernet connection nor a wireless one.
Can you help me enable the network adapter and then install the proper driver for wired and wireless devices?
Thank you in advance,