Sky have told them to try another PC, sort of understandable as clearly the broadband is working, just that they cannot connect via wireless. One possibility is that the PC needs setting up to talk to that Sky box's wireless interface, security level, network id., password, etc. Not sure but I think they're running XP.
Her husband is currently undergoing treatment for cancer so naturally she really doesn't want any further hassle, she just wants it to be working.
I'm going round tomorrow afternoon to have a look, I'll take my netbook to see what that can see.
Anything I should look for in particular?
How do I login to the SkyLink box?