To get around the encryption, plug your laptop physically into the router with the cable that is/was in the desktop. You should be able to access the 'net then, and access the router to reset the encryption. :)

You'll have to put in a username and password to get into the router; I don't remember if we left it at the default stuff, or if you put something else in... if you can't remember and can't find anything that might have the info in it, resetting the router like someone else mentioned will put it back to the factory settings (and the default router password), so you can start over with that and the encryption.

Oh, and... ****cuddlesnuggles****