Back up apps on iPhone ???

I need to back up my apps from my iPhone. I have some new apps that are not yet in iTunes. [I have just backed up the phone]

So far when I try to sync the iPhone apps, I am warned that the apps and data in the phone will be replaced by what's in iTunes.

I can not find how to save my apps or transfer my new apps to IiTunes without the in-phone apps being destroyed. Help files are letting me down.

What the heck ???

How should I do this? I want to put the latest iPhone update in my phone and I won't do that before I have safely saved or dupe'd the new apps into iTunes.

I think that is the smart thing to do.

But how ?????

Mike Bauers