OK to get this straight, the set up in your house is:
internet box ------> moden --------> Router --------> PC
all these are connected by cables(ethernet)
PC ---------> Laptop
Wireless connection
Laptop must have a reciever of some kind, wifi card or usb dongle.
If this is correct, and you are saying that your uncle only lets the laptop connect to it, then you have two options, if he has a WEP key on it then the laptop knows it, so get it and put it in the PSP. If he has restricted it to only one connection at a time, then you need to get onto the PC and start changing settings. if the PC is password protected then you need to do some watching over the shoulder to find it out.
If im wrong about the connections in your house then say.
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