@bobsi, use your c+down rocket to fly up to the part in yellow you couldn't reach before, fight the enemies and the upgrade will come soon enough. Or just use a walkthrough: http://www.youtube.com/watch?v=nchiBV4SWIo&feature=related
Boring. All you're doing is clicking on two elements, hoping to get something. Nothing makes much sense, and the graphics and music are snooze worthy. Now if we could actually see all the elements we made impact the actual world in real-(game)time. Wow. Until then, 1/5