Where can I go to find good information on transforming Transformers?

My oldest son is in love with Transformers, so we pick them up when we find them at Yard sales, thrift stores, etc. Our latest is Unicron and I can't figure out how to make this guy into a planet. HELP!!|||He sure is a tricky one. He's some scans of the original instructions|||Try Google.com. I may not be of much help, if not I'm sorry,but that's all I can say. Then type in "How to transform Unicron" and then press enter. Then look for something that says video. Click that and you'll be able to take it from there. I hope I was of assistance and please if you need help i will look at the questions every other week so time them right.