The "40_13" part of the starter pack name means the DF version was 0.40.13 (and "r2" means it was the second LNP for that DF version).
If you still have the save, the odds are that it's located in the DF folder' save folder, and that the DF folder is still located inside the LNP. If so, you just have to locate and start the LNP and start DF from there.
However, DF is backwards compatible, so it's also possible to download the latest LNP and copy the save folder into that version's DF (which will be 0.43.03). However, some things added since that save was started won't be available (step ladders for fruit picking from late in the 0.40.X sequence, and songs, poems, and music instruments from the latest arc, and probably some other things).