I don't have experience with this as my daughter is only 5 months but I have had some problems with her not taking a bottle/cup so I have been doing a bit of reading recently as I was worrying about my options when it came time to weaning.
Firstly, if your daughter isn't sleeping through the night you should focus on her getting thorugh the night without breastfeeds. Once this is going okay only breastfeed her with her 3 meals and then gradually replace the breastfeeds with milk from a cup. Apparently they will drink more from a cup as the breastfeeds decrease. You can increase your baby's fluids by offering her fruit jels and extra fluid in her meals if you are worried.
Good luck with it, let me know how you go. I am very interested as it will be my turn soon!