If you look closely at the business end where I have started to weave a little bit, you will see a beam that is totally in the way. When you try to beat the yarn in place... you cannot. This is when I looked back at the plans and discovered my folly. The heddle blocks are also backwards in this configuration, but I could have worked around that. I'm not sure what to do. I have to somehow unspool the 15ft of warp threads from the "back" beam (actually the front beam), flip the heddle,and spool them on the "front" beam (actually the back beam). I think this is possible. I would hate to chuck all that yarn and start over.