Adobe Reader and Adobe Acrobat are definitely compatible - you should be able to open any valid PDF file in either Reader or Acrobat without a problem. If you have both Reader and Acrobat installed on the same system, you have to make sure that both are of the same version (e.g. both version X or both version XI). If you have a different combination, that setup is not supported.
Printing to TIFF from any application is done using a 3rd party virtual printer that creates TIFF images instead of printed output - just like the virtual Adobe PDF printer that comes with Acrobat creates PDF files. If the Microsoft XPS Document Writer that came with Windows XP was able to create TIFF files, but the one in Win7 is not, then you need to complain to Microsoft, this is not something Adobe Reader did, it was done by the Windows printing subsystem.
You can always look for a virtual printer that creates TIFF images, but again, this would not be Reader specific, you would have this ability from all applications once you install such software.
Karl Heinz Kremer
PDF Acrobatics Without a Net
PDF Software Development, Training and More...
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