There are 2 tarballs for the instrument PC:
http://speedy.med.harvard.edu/PolonatorSoftware/dl/current_acq
http://speedy.med.harvard.edu/PolonatorSoftware/dl/current_fluidics
And one for the image processing PC:
http://speedy.med.harvard.edu/PolonatorSoftware/dl/current_pipeline
Note these are normally retrieved and extracted by automated scripts running on each of the Polonator PCs.