This is version 0.9_06. This update features the ability to easily work with custom texture packs.
"ERROR COULD NOT FIND MAIN CLASS... PROGRAM WILL EXIT" happens to all my java apps :/
Update your java .
Open a terminal
java -jar FILENAME
Only registered members can share their thoughts. So come on! Join the community today (totally free - or sign in with your social account on the right) and join in the conversation.