Well I changed an .ipa (to change an iPad game to an iPhone game) to a .zip and after I extracted the zip and got a folder. I made the change that I wanted but I guess you cant make a folder to an .ipa file again. How do I do it an .ipa file again? If need I can give more details. I would be really grateful 
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If you have the same problem, drag your folder to your iTunes. http://www.youtube.com/watch?v=lnRSFu-hQV8 here is how to do it. It is not my video. Thanks to Joel Mangahas
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If you have the same problem, drag your folder to your iTunes. http://www.youtube.com/watch?v=lnRSFu-hQV8 here is how to do it. It is not my video. Thanks to Joel Mangahas