button at the bottom of the screen in MediaTransfer and then click the 
button.
Resending Pictures and Videos:
MediaTransfer only sends videos and pictures than it has not previously sent.
When you are testing and you want to force MediaTransfer to send all your Pictures and Videos again you can tap the Clear "remembered" items now button to force it to forget what items it has perviously sent.
This will cause MediaTransfer to send all pictures and videos in your camera roll.
Telling MediaTransfer how many days worth of logs to keep.
MediaTransfer also keeps a log of the last 200 events in it's log, however you can select how many days worth of information to keep by sliding the slider in the database section.