Why you didn't just reset it with the reset button to factory settings.
I bought a Linksys WRT54G at a sale from someone who had upgraded to the new Valet. The router works fine, but the previous owner had it encrypted and I can't use it without the WEP that it's asking for. I live in the country with no neighbors near by and don't necessarily need the security of encryption. How can I reconfigure it without the encryption so that I can use it?