ViewPager Fragments doesn't show correct data

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http://stackoverflow.com – i'm pretty new with Fragments and ViewPager. I'm using ActionBarSherlock and ViewPageIndicator from Jack Wharton. I've started with a standard Android MasterDetailFlow Activity and did try to modify it to use a ViewPager in the detail part. I'm using the standard DummyContent to provide some static data but i've replaced the DummyItem with my "Survey"-Library i have to use in this app. DummyContent provides a public static ArrayList which i use to fill the list in the list activity. After i choose a survey in this list, the corresponding questions should be shown in the view pager. Here is (HowTos)