Creating a .IPA File from Source Code

Hi, I had two iphone applications created earlier this year, I have all the source code, and both apps work perfectly in the iphone simulator on xcode and when testing on the iphone plugged into my computer. The problem is, there is no .IPA file within the source code, so I cannot release the apps. I've read loads of tutorials on the internet, and it seems like it's an easy thing to produce. I've tried and tried and I just can't seem to do it... So I'd like someone to do it for me please. It should only take a freelancer 5-10 minutes. I'll also need you to print your name on a NDA, as these apps are finished - I don't want to send them to someone, and they just release them themselves. Thanks,