Our company has developed several apps for iPad. We currently hold an Enterprise License with Apple. What we have been unable to do is DISTRIBUTE the App. We had our distribution certificate renewed, and I never really understood how this things work. We just need someone with experience on renewing such things (certificate + provisioning profile), and update it all.
I must say, we don't have access to the code anymore, just the budled IPA files + certificate + developer member access at dev.apple.com. I hope that's all it takes.
After many attempts we're checking if any freelancer with far more experience then us could do this small job.