HB,
U can find DC's email on the page, and drop him a line 'bout wanting to join & waiting for more info. He's planning on starting again in Feb sometime. BUt the page has answers to all your other questions. What worked for me was a phone card with a local access number, for less than 1.2 cents per minute nation wide. No one at home or work need ever know. No use of cell-phone minutes, cuz I'd use a land-line (even with unlimited minutes, if someone else sees the bill, they'll see the many minutes to that number and may question it.) Coincided with lunch time for me.
I also asked about what if I'd miss. In fact, I missed the FIRST DAY cuz my Mom was having surgery. Let me tell you that even tho DC would post a daily summary, it does not compare to the real thing. There are those who came late, and those who left early, each according to his needs each day. But hearing DC's voice and those of the others, once everyone is sharing their thoughts and struggles, but mostly their successes, is worth all the money in the world. I did not want to miss a single minute. It's only 11-13 weeks long, depends on the progress. Maybe you could arrange your schedule to start your day an hour earlier, so you could take off for a conference call for that hour without losing anything. I told associates I was on a Lunch & Learn Mussar Shiur, so they wouldn't call then.
I hope u can work it out. It WILL change your life, and You're worth it.