Multiple hot spots on one image

OK, I've set up the question as fill in the blank -- am I supposed to put the variable values from the transparent buttons into the Possible Correct Answers? We're not showing the results page, so it sounds like it doesn't matter if I leave the values as 0, 1, 2, etc., for the button actions. If I'm using a transparent button over a section of an image, is there any way to set it so that it will highlight when it's clicked? Or do I have to do something different? Also, I'm still not understanding how the transparent buttons tie to the fill in the blank question. Have I covered that by setting each button's OnClick Properties to:Action: Modify VariableTarget: Question variableValue: 0 or 1 or whatever for the buttonModification Type: Set Variable ContentsIs there anything I'm missing or have incorrect? I'm obviously very new to this and can't find what I'm looking for in any user guides. I saw some information on some of your Web site links, but it's all still a bit over my head. Thanks for your patience.