The links above for tarball files can be used to pull over various files associated with hexburst projects. I suggest you click on the desired link with your right mouse key and then select the "Save As" option to retrieve the file. I have used the gnu gzip command to compress each file. To unpack the file:

tar cvzf file_name.tar.gz

or 

gunzip file_name.tar.gz
tar cvf file_name.tar