Did you read my other post on prepping for your Certified Fundraising Executive certification (CFRE)? If not, check it for tips on how to get your points for the three categories. Once you have those, you can study and register to sit for the CFRE exam. All the information can be found at http://www.cfre.org/apply/exam-information/
To help you get ready for the test, please listen to this quick 5-minute clip summarizing my own experience studying for and taking the CFRE exam. Good luck!