Hi, I'm an unfortunate PC user, so please be gentle On behalf of someone who has a Bondi Blue iMac G3 with OS 8.5, how do I go about upgrading it to 8.6, or perhaps higher? She's not too technical herself. Also, she would like to upgrade the memory, I guess to the most possible. I don't know how much is on it, but it would be factory preset as she hasn't opened inside of it. Many thanks for any advice.