Also - dont assume that she's going to fuss, assume that she's going to be fine! Project good feelings and she'll feel that. Project that you're nervous or that you're 'sorry' for putting her in it and she'll feel that too.
Set up the crate, leave the door open, put her favourite toys in there and feed her in there. Leave it up for a couple of days until she's used to it. When she goes in, quietly praise her. Never call her out of it or go in after her. It should be her little space where she can be comfortable and 'get away from it all'. If she comes out - don't react, she just came out! No biggie.
Simply put - don't just set it up, throw her in, lock the door and go out for the day. She needs an introduction! Once she's comfortable with it and you do close the door, don't make a production out of it. Make sure she had a good walk before hand (the old mantra "a tired dog is a good dog"). If you promote it as a good thing, she'll accept it as such. If she does fuss, it's not the end of the world. A silly pup - stop/quiet - should suffice. It's a matter of fact event - treat it that way!
