Hello, Y2K Bug.
Here are two sites that I studied and referred to in the weeks before my first surgery (due to UC and colorectal cancer). Next to this site, I found these are the most informative, easy to read and understand, and well laid out for people who are bewildered, frightened and overwhelmed.
ucsfhealth.org. (This is the University of California San Francisco pouch site)
stomawise.co.uk (This site uses plain language and some pictures you can understand when the mind is reeling.)
I hope your friend is better now and adjusting to her new life without pain or problems. They found the cancer and that is a good position to be in.