Hello to all!

I'm new to this forum and following the GRW topic for some while.
My client is of number v1.3.0.0-beta and just synced with the 1.3.0.0 node found here
http://grw.blockx.info/connected-nodes. I checked getpeers, but it didn't connect to Satoshi:1.2.1 node found on the same site. I'm at block 590713, but wonder if I'm on the right fork.
Can you explain me how to check this?
Greetings,
Alex_Koekie