Cleaning bags (with printed fabric lining)?

My beloved black IW Versailles Rose bag http://hellolace.net/wardrobe/innocent-world/type/bags-and-wallets/item/4/ which I have had for a few years now and was my first brand item, is really in need of a clean, both inside and out. I have looked and the memories and found a few options for cleaning synthetic leather, but nothing about cleaning the inside of the bag. It is lined with IW's Versailles Rose fabric, and I would be devastated if I tried to wash it and I ruined it. Does anyone have any advice on cleaning IW's print-lined bags, or any bags that are similar? I would greatly appreciate it :)