Either you have access to Pages ’08 v3, Pages ’09 v4, or neither. One of these older, but more functional versions of Pages can open, and export the document in question to Word. Preview on OS X 10.9.5 and Yosemite can view Pages ’08 documents (in my experience). It is not obvious to me that Preview may be using the installed Pages ’09 v4.3 to assist in opening these '08 documents.
Once opened in Preview, you can select/paste text into Pages v5.2.2, or v5.5. If you want the images from the PDF, then export it from Preview as PDF, and then drag/drop onto latest free LibreOffice icon in the Dock, which will open the PDF for editing. Select, copy, and paste the images into Pages v5, or incorporate into Text boxes, or Shapes. When pasted, images will be in their original size/resolution, not necessarily as small as they appear in the PDF.
If the second paragraph is a chore, then follow Peggy's advice above on the sources for purchase of Pages ’09.
In the future, I would not recommend trusting document architecture to Apple, and use a more accessible format (.doc/x) for better cross-platform access, longevity, and application choice. You may find LibreOffice, or Office for Mac 2011 a better choice for features.