So, thanks to ConfigMaker, I had the two routers talking to each other for a while (able to ping each other and deliver configurations across the network), and then it dropped. Unfortunately it dropped in the middle of me delivering a new configuration to the router on the remote end of the t1, so I've got to go up there again tomorrow and update it via the console cable.
Still can't figure ot how to set the channels or the channel speed on the PPP connection. Might that have something to do with why the connection dropped?