I'm sure a lot of the previous posts were submitted by guys that have more TW than I do, but I feel like I need to contribute my 2 cents. The biggest things I run into when transitioning guys from tricycle to taildraggers is the tendency to fly with "dead feet"---Avbug said that you shouldn't HAVE to have dancing feet, but the problem I see is that guys don't have any feel for rudder control when we start. They're so used to taking off/landing using a little aileron control for a xwind situation and then only using their pedals for taxiing or to center the ball halfway thru a 360. So, I typically tell students to prepare to have dancing feet, knowing that they CAN and WILL overcompensate at first but that as they feel how much control they need and how much effect their inputs have they will develop a feel for it. It doesn't take very long, and from my first flight I KNOW for a fact that I was helped by my helo experience of always gauging how much rudder I needed for tailrotor control. Most guys that have only flown 172s or other VERY forgiving aircraft don't realize that yaw control in other aircraft is important at all times, and tail draggers very quickly will bring that point home! Keep with it, buddy! I second the opinions that say that the experience will not only make you a competent TW pilot, but will make you a better pilot period. After a couple months dragging rags and doing this stuff every day it'll be like breathing---something you do without conscious thought. Skills that are THAT intrinsic will stay with you in every aspect of your flight experience and help you to be a true professional.
BTW, every banner tow operation that I know of flies either Super Cubs, Citabrias or Pawnees---all of which will put you on the aircraft's centerline rather than right/left. That fact in itself will help you to pick up the clues as to deviations and corrections that were discussed here earlier. It only gets easier, dude!