You can find instructions on obtaining the DST code here: 

https://confluence.slac.stanford.edu/display/hpsg/HPS+Data+Summary+Tapes

Once I am happy with the final product, I will update the instructions a bit more. For now, looking at the examples along with browsing through the HpsEvent API should be enough to get people started.  

You can find some sample data here: 

http://www.slac.stanford.edu/~omoreno/testrun_dst/

I will generate DST's for all test run data once a stable version is reached.  At that point, I'll probably tag a release as well.

Note - I expect the DST structure to change a bit more over the next couple of weeks so expect things to break.

--Omar Moreno