Here's an example of a router that uses the latest Wireless N standard. Simply connect the VM modem to the router using an ethernet cable then connect the laptop to the router, again using an ethernet cable. It's important that she does the setup this way so she can create the required security on the router before switching to wireless.

She will need to change the SSID, the Admin password and use WPA(PSK) for security. That will involve creating a complex key of at least 12 characters (preferably more) on both the router and the laptop. Once it's all up and running she can remove the ethernet cable between the router and the laptop and use wireless instead.