As for a block explorer... I have a couple of people that have set up explorers for me in the past that I can ask. I mentioned them to frameLAlife in the early stages of discussing what we could do to revive OctoCoin. Both of these people usually set up block explorers for free. One pays for his time through ad revenue and the other relies on donations. I'm not sure that either would be willing to create one for a short-term project without some sort of payment up front.
Of course, there may be some who want to stick to the old OctoCoin, so having a block explorer may not be too much of a short-term prospect if people were still mining and trying to keep OctoCoin alive after most of us have moved on to OctoParty... I will send some emails out today and see if either of them are interested... We may need to raise a small amount of funds to actually make an explorer happen.
As for block chain security... There has been a small amount of hash on OctoCoin keeping the chain moving. At times it has been around 200mh/s, but usually much less. If anyone wants to mine (as I said in an earlier post) the only active pool I know of is at lifeforce.info. There has been some hash coming in from elsewhere at times, whether it is another pool or people solo mining, I'm not sure.
I threw a few mh/s on lifeforce just to keep the chain moving last week and have kept it there, for the most part, since then. If anyone knows of any other pools operating, post them in the thread. If you have some spare hash to throw at the lifeforce pool (or solo), you can pick up a few more 888's to burn for OctoParty and help keep the chain secure until we get the burn over with.