Podcast album playback & order

Hi I have a sansa clip and find it very anoying that it plays my podcasts by album and does not go to the next. At the moment I retag all my podcasts but the way some of them are tagged means that I have to do it with multiple programs. This is very time consuming. Also I can’t work out how the clip decides the order to play back my files. Sometimes it plays episodes out of order when they are labled by number.