Virtual Villagers Help! completed 12 puzzles. cant figure how to complete the remaining ones! driving me nuts!

Big Fish Game "Virtual Villagers". Completed 12 puzzles. Can't figure out the 'Flower w/stars", "erfly", "Cacoon", "Cave". Its driving me absolutely batty. I have all abilities and can't purchase any more tech. I have 90 villagers. I am also being driven nuts by the rock lifting thing that causes the large boulder to move...or sound like its moving anyhow. I am determined that someone out there can help me get this. I've checked all of my peoples details, etc. and still cant seem to work it out. HELP!!!!!!!!!!!!!!