Yes, my best friend is (and just had her second child)...I did (but underwent treatment and cleared the virus nearly eight years ago)....an NCT pal's husband was (also treated, also clear - though more recently)...and I know of several others.
The course of the disease varies a lot from person to person, but its nearly always a long, slow, chronic progression - sometimes causing sifnificant liver damage, sometimes not. Mine was. Treatment is more manageable now than it was when I did it, thanks to Pegylated Interferon which is only once a week injection. Side effects vary hugely - I had a rough ride, I know of others who've had an easier or a harder time than me. One thing is for sure, emotional and physical support can make a HUGE difference - I was lucky there!
I'm sorry your relative is going through this, I think the time just after diagnosis is the worst...so confusing, so much information to take in, shock and other feelings to process, and quite often a degree of (outdated, frustrating, and isolating) social stigma to cope with.
There is a good website run by the Hepatitis C Trust, which has a lot of links, support, information - I think the address is www.hepcuk.info
Wishing your family well!