Hi Kerry,
Do you think you may need to join us on the 2-to-1 nap transition thread? It is the first sticky at the top of the Naps page. Thread #17 - loads of people talking about nap refusals and trying to extend A time so that LOs can get to 1 nap. My DS is 10 months and refusing pm naps, too. He is usually pretty good to go down in am. Sometimes he will still sleep 1 hour or more (even up to 2 hours rarely), but today and most days this week he only did 45 min and then refused pm nap. Needless to say, BT has been very early and we are also getting NWs and EWs. There are some great Moms with great advice on the other thread. I wish I had more advice to offer, but we are having real trouble over here with naps - and he is my first baby, so I really don't know what I would do if I had an older child to also deal with!
hth
good luck