Goto the top of the page and click on 'Home'. Once there you will read more about Hal and find a link to download the trial version. Do you have any extra batteries? Right now my ER1 has two eyes, one arm and the ir sensors. The way ir is right now it stands about 42 inches tall but I am not happy with that. I am also not happy with thea aluminum bars it is built with. I want to redo the thing with sheet metal and make it at least 5 feet tall.