Hi,
I have a few points to make.
First of all, genital warts virus is passed on through skin contact. It has nothing to do with intercourse or coming inside you. If you touch each other's genitals you will pass on the virus to one another, with or without a condom!
Secondly, there are many different forms of HPV. Some cause warts but not cancer. Others cause cancer but not warts. If you have a type that causes warts, don't worry there is no way it can lead to cancer (unless you have more than one type of course).
Low-risk HPV (genital warts) is pretty harmless really, the majority of people get it at some point in their lives, but often never get symptoms and therefore don't know they have it. The only way it can be diagnosed is if the person has an outbreak, or by a PAP smear for women (this will only tell you if you have it on your cervix, nowhere else).
THERE IS NO CURE FOR HPV. You can get rid of the WARTS with creams, freezing, and by eating very healthily, but there is nothing to stop them coming back in future, as the virus will still be there. The best advice is to eat lots of fruit & veg, get enough exercise and don't smoke. As I said it is not a serious illness, just a minor skin infection - the worst thing about it is that you will pass it on to your sexual partners (so it's best to let them know beforehand).
Please do not judge anyone who suffers from genital warts - it is VERY common, cannot be prevented with condom use and often remains dormant in the body for a couple of years before any symptoms show (you may never even get symptoms, but can still pass it on). Being infected does not indicate promiscuity - anyone who has had any form of sexual contact can be. The good news is that the body usually manages to fight off the virus, permanently, all by itself - but this takes a few years. There are no drugs available to aid this process, because it is a virus, and viruses cannot be cured with medication!
One more thing, to the guy who is getting married: If she plans to stay with you forever, then I see no reason to avoid sex. She won't be passing it on to anyone else now will she?! If she has a wart outbreak, just go to the clinic and get them removed. No serious harm is done. People get confused about this, but no matter what anyone tells you, GENITAL WARTS CANNOT LEAD TO CANCER. That is a completely different form of HPV. If you don't believe me feel free to discuss it with a qualified sexual health doctor (not a GP, a specialist).
Good luck everyone!