In this weather I know it'll be hard but I'd move the paper nearer and nearer the door and then put it outside too - it might just encourage her to do it outdoors. Make sure you go with her every time and use the same word - wee wee, be clean - whatever you use - and when she does do it give her loads and loads of praise. if she has an accident in the house dont draw attention to it - just clean it up without talking to her - she'll get the message that you're not pleased with having to give her the hard word!!
Personally I've never trained to newspaper cos I think it means you have to train them twice - once to the paper and then again to the outside - but each to their own. Good Luck with her and well done for taking on a rescue bubba
