I've never been a fan of using newspapers or puppy pads when housetraining, rather I've taught my guys to go outside from day one. My rational is that using newspapers is twice the work for both you and for the pup: First you have to teach the newspaper routine, then suddenly the pup has to learn that this is no longer acceptable and you have to start all over again teaching him to go outside - confusing for the pup. I prefer to start as I mean to go one.
Here's a tried-and-true way to house train a puppy:
http://drsophiayin.com/docs/articles...earns2Earn.pdf
Yes, this method requires you to put in a lot of time at first - you need to be with the pup round the clock. But it quickly pays off - the pup learns the ultimate goal without having to learn and then discard the intermediate steps.
For accidents, I am a big fan of Greenfields:
http://www.greenfieldscare.com/produ...ing-a-training
Available at Fressnapf. - Check for color-fastness first. This is primarily an odor remover - very important if you want to prevent repeat marking. If stains persist, ask your landlord what product is recommended for your floors - different flooring types may require different products.
When dealing with senior incontinence, I simply use human bed pads, available at any Apotheke or at the grocery store. They are larger (so you can cut them up and get more for your money) and a whole lot less expensive than those made for puppies.
But I would encourage you to consider Dr Yin's methods (for basic training as well as housetraining - her website is a great resource for dog owners, especially if you are a first time owner). This method really does work, and establishes a bond that will serve you well as you continue training.
Best of luck to you both.
ETA: Melusine is correct - you have to clean urine stains immediately. (Well, after you have rushed the dog outside - that takes precedence of course. You will find that you need to keep a cleaning rag and bottle of Greenfields permanently to hand for some time - one of the many joys of puppy ownership.
If you can't find Greenfields, Fressnapf can order it for you. I found it works far better than the other brand avialable. (Beaphor, I think)
Out of curiosity - what housetraining methods did the SKN course recommend?
ETA 2:
I would have to caution you not to reduce water allowance - a puppy, especially one so tiny as a Chi - can quickly dehydrate. Puppies - and all dogs - need fresh water avaialable at all times. Rather, the owner needs to increase vigilance.