That site doesn't help author double-spends, but it will relay them, which OP originally asked for although he really wanted a friendly miner.
Ok but how do i add that node? should i just
bitcoind -connect=respends.thinklink.com
Or is there any other command to add
http://respends.thinlink.com as a node as i don't really see any ip address of that node and yes with a friendly miner it would be a lot easier.
I don't think that is the node itself, just a database, as it says in the description.
Let us connect our first instance to nodes running bitcoin v0.8.x (use -connect option)
Is there a command like -connect=0.8.6 or should i just pick a random node?