There is one in General Topics / General Discussion. The second listing says Cbet Study Guide. Click on the title in the white box of the attachment to download it. It is written by Dave Harringtonand is 100 pages long with some practice questions.
There are some other ones but you have to be a premium member to access them. You have to pay $50 to be a premium member. When you do this your name changes to a blue-green color and a couple of extra areas pop up and allow you to go into them. You also get to watch about 15-20 videos that they sell, as many times as you want for one year.
There really isn't a whole lot out there in study guides. I talked to a guy I met on this website that said he bought a CBET study book from a website called Mo-media or Mometrix. He said it was total garbage and very few things listed in the book were on the test.
Private message me by clicking on the PM tab and send me your e-mail address. I will try to send you one of my study guides I submitted in the premium member section catagory "CBET Practice Questions". I don't want to list my email on this post.
Another helpful study tool is to check out 24x7 Magazine online. [ http://www.24x7mag.com/archives.asp ] Go to the archives section. Click on a magazine date and then click on the ICC PREP tab. It has good articles and practice questions.