So your V3.3 HUD has all your poses in it as well well as presets and possibly pose catalog. Now that the new V3.4 HUD was delivered whats the best way to get the information transfered.
The answer is easy. The backup server allows you not only to save a copy of all your poses and configs in case linden decides to go bonkers, it also allows you to transfer all the information from a V3.3 to a V3.4 HUD.
Hope this video helps make this a piece of cake. :) (watch the video in HD resolution if possible)