"...I just can't get it to propagate across the network for some reason..."
And you still don't get it?
I definitely don't. I'm running 0.3.24.2 clients, they're connected to other nodes with the changes, when I pointed a 0.3.24.2 client at another node which had the 20032-block long chain it quite happily downloaded it and accepted it as the valid longest chain, and yet it still doesn't seem to have propagated to the rest of the network. There are even other nodes out there with it now; I can start a fresh 0.3.24.2 node with a clean datadir and pick up 20032 blocks.