Not all the viewers can be embedded in the PDF View, but Acrobat is one of these you can use, so have you tried to change the "Internal PDF Reader" options under the PDFE preferences?
If Acrobat is installed in the same CrossOver "bottle" (i tried with a XP type "bottle"), seems to work (see attached screenshot of PDFE running in Xubuntu, with CrossOver help).
Acrobat Reader XI crashes, even as stand-alone presents some problems, but then I installed Acrobat Reader 7 and seems to work. Maybe newer versions will work too.
To use the Foxit Reader, maybe there is the need to install Internet Explorer, and choose the "Internet Explorer Default" option.
The SumatraWLX plugin also works.