yes you can go back and look at lessons again.
the only problem i find is that if i pause it, or try to rewind it, the diagrams that come up will not match the rewinded audio...so i end up starting over ALOT!!! because that seems to be the only way to get it reset so that they match again...will it kill me to listen to it 3 times, um NO, it's just irritating maybe it's my computer...but i downloaded the correct realplayer they wanted and everything