Get your taxes done using TurboTax

And if you do get the versions older than 2014 installed again you may not be able to update them or download any state programs you need.  If you can't download the state you may not be able to open your return.  Do you just have the .tax files for them?  Or did you save them a pdf files also?  You don't need the program installed to view a pdf file.

OR you could try the TaxPrinter service at  http://www.taxprinter.com

They might be expensive and it is probably not safe to email tax returns back and forth  Their Website says…….
We read most federal and state files (Windows and Macintosh) from years 1996, 1997, 1998, 1999, 2000, 2001, 2002, 2003, 2004, 2005, 2006, 2007, 2008, 2009, 2010, 2011, 2012, 2013... Known exceptions are TurboTax 1997 and TaxCut 2005 files which we can't read for technical reasons.

OR get a copy from the IRS -
http://www.irs.gov/Individuals/Get-Transcript