I dont know if they took them off for some reason, but they have been online already for several weeks. I worked all of them on the ACEP website a week or so before I took the qualifying exam...
According to the website, the true online version of PEER VIII won't be available until middle of 2012. The print version of PEER VIII comes with an online testing component that does not include the explanations for the questions.
If you have access to AccessEM, there are >600 questions available there from several different sources.