The kit stuff requires Quartus 12.0 (no SPs either! just straight 12.0). That being said, most of what comes with it is just test programs and not much more useful than that. You can use the board update portal (webpage) and USB-JTAG connection with any version of Quartus. Currently I am using 14.0 for my Stratix V designs (mostly because I haven't got the time to go upgrading to 15!).
All of the pin assignments and I/O standards can be found here (I am not much of a fan of Golden Top files, best just add the pins you need when you need them!):
https://www.altera.com/content/dam/altera-www/global/en_us/pdfs/literature/manual/rm_svgs_dsp_dev_board.pdf BEWARE though, I have found a couple of mistakes in that document (only in the pin assignments for the flash, can't remember which) - almost all the other features of the board I have used and found no issues with the pin numbers in that document for them.
If however you do want the golden top, it can be found here (assuming you installed the kit, which doesn't require quartus to be installed)
C:\altera\12.0\kits\stratixVGS_5sgsmd5kf40_dsp\examples\golden_top\5sgsmd5k2f40c2n Within that folder there is a .qar which you can extract using Quartus and inside will be the golden top stuff - the pins are in "s5_golden_top.qsf" which you can import into your project.