I can't help on the manual, but sure would recommend upgrading from 5 to 7. Huge differences in the program, and results.
As for the PDF, open it in Adobe photoshop (any version) or even elements and save the pages as jpg. You still won't be able to open them in word however. You should be able to also copy and then paste to word, i.e. copy from the open PDF in photoshop, or corel etc. then paste into word. It's going to take some time, but will work.