In case anyone did not know, this coin is still running, and has been all along.
It is one of the assets traded on the Digitalis Open Transactions Server, so historic tables can be found at
http://galaxies.mygamesonline.org/digitalisassets.htmlIt is in fact one of the assets in terms of which other assets values are shown in those tables.
NOTE that its symbol is GRP, and it is NOT to be confused with the johnny-come-lately GRC that idiotically used the same name ("groupcoin") without, evidently, checking whether the name was already in use.
To help folks interested in trading it I am issuing an asset named GRP on the Stellar network.
To utilise it set up a line of trust for the asset name GRP and issuing account GBHAQ252S4Z4AQOM4BWIRC3UHAOJIKCZQBUJGD336YH2O7W2NKRXMHA5
If your list of peers is out of date, addnode dvcstable01.dvcnode.org should enable you to get updated node addresses.
If you need source code for GRouPcoin you can download it through
http://LFM.knotwork.com-MarkM-