Thanks all for the "rules" to all of this. I have reverted to a new approach to all of this and will revamp my model based on the new info. Besides, after some serious study of my subject the model was not as realistic as I expected it to be. However I will use it for refrence and a test dummy so to speak. I seriously went around to the websites, and read the infomation on some Models that I downloaded. And I did find refrences to not using them, and others said that they were free to use. Its so crazy to get models, and not be able to expand on them without having to rebuild them within your own computer. But at least now I know the deal. Thanks for the information! Blacksteel