That's a good link, Omni.
Starting with the stars each camera earned, I'd omit the 3-star one right now. And then I'd omit the Panasonic, because her friend has a Canon and can show her around a little, as models and features are so similar from one Canon to the next.
That leaves the SD850, which I recommended, and the SD950.
The macro is better on the 850 (2cm) vs. 5cm for the 950. (This may not be a big deal to some, but some of the most fun of having a digital camera is having a good macro mode.)
The aperture (pupil) range for the 850 is good enough: F2.8 - F5.5. The 950 (I assume there is a typo: 2.0-2.8 doesn't seem likely), but that extra bit on the 950 MIGHT make it worth the extra $75. (Abby, I don't know how much of the language you speak, and am not trying to talk down, so let me just tell what I learned. I don't know or care what "F" means in "F-stop", but I think of it as the pupil of an eye. The bigger it can get, the more light can come in, so you can get better shots in low light. This is particularly useful in restaurants, and f/2.0 is pretty darned good.) When you have your pupils wide open and focused on something close, like the face of your kitty or your beloved, it makes the background blurrier, which also is something I enjoy. The larger f-stops are for landscape shots, or things far away, when you want everything in focus. 5.8 isn't the bee's knees, but it's decent.
The other advantage the 950 has is
shutter and aperture priority. Why is this a good thing? Once again, back to the pupil. I almost always choose aperture priority, since the subject matter dictates how I want to see it. The larger the opening (the lower the number, go figure), the more "intimate" a shot it is. So flowers, food, and faces always get the lowest aperture setting I have. I think, if you aspire to be a good photographer, you would really prize this feature, in the short and long runs.
Another great feature for them both is that they have a battery charger.
The 950 is not considered "ultra compact," though. That would be something you'd want to go into a real store and test for yourself. It's a good idea to feel the camera you're thinking of buying.
Anyway, I'm sure MJordan can chime in here—I'm not addressing every single technical issue, since I know you really just want a camera that you can start up with and be happy with. I feel like I went from a Vespa to a Harley when I got my Nikon D200, and it has features I can't BEGIN to use without an immersion class in the language of photography.
I did a search for the SD950, and
came up with a price just over $200. I used an NYC zip code to calculate shipping. Techon Digital, with over 4000 ratings, gets 5 stars, so I'd probably be willing to go with them.
Abby, see if you can get your paws on either or both of those cameras. See how they feel.
Hope this helps, too.