The data is still freely available and can be accessed through our newer (and much more capable) analysis tool, NeuPrint ( https://neuprint-examples.janelia.org ), dataset "medulla7column".
If you are looking for "SharkViewer", this capability is now available in NeuPrint with query type
"Visualization->Skeleton", eg: NeuPrint Example.
The Source code can be found on: GitHub
If you are looking for "Gorgonian", try query type "Connectivity Graph" with your neurons of interest, eg: NeuPrint Example.
If you are looking for "Fly EM Tables", the exact same data (though formatted differently) can be obtained through query "Simple Connections", eg: NeuPrint Example or obtained through our API or via neuprint-python