Although the share the TFP name, TFP 15 and TFP 17 are two different programs, created by different developers, with different capabilities, file formats and UI.
The TFP 15 file format is .bld and the TFP 17 file format is .pro, therefore, TFP 15 doesn't open TFP 17 files and vice-versa.
A workaround => prepare the files for printing as PDF files => email the PDF files to you office in order to print files.
I've a free tutorial about printing in my website http://www.punchhelpers.com/printing_punch.htm
Hope this helps