Get her an early Christmas present and buy a suitable router and configure it.
Chances are that the dial-up is just PPPoE, which is fairly simply and if you look for her specific ISP there must be people suggesting suitable hardware that is available locally.
This.
The small amount of cash saved will be more than outweighed by the hours of faffing to set up ICS and make it all work properly.
Here's the kind of kit you need. Should be cheap too - how many people want a router that does dialup only?
Ebay item = 190454919938 (about 4 days left....)
Edit - rats, you need wireless. Will rummage a bit more, but most of the 56k routers were around before this wireless lark really caught on, that netgear dates from about 2002-2003.
Double edit - Bluetooth to 56K is quite common, Belikin, Zoom, Trust all make modems like this. Phone and iPad already have BT, and the PC could get an addon usb dongle for about £2 at hong kong prices.
Alternatively, some of the better routers can fallback to dialup. An early Draytek, maybe? The current 2820 range can do this, don't know the older ones well enough to name a model.
Edited by deleted (Wed 13-Oct-10 13:22:51)