If you change the package name, then others who have already installed it will likely be unhappy that their app doesn't update, but rather they need to uninstall the old one and reinstall the new one.
I've never tried to just change the app name (app label) in the market before. It may be doable, but it could just take time for the changes to propagate through the system.
I notice that when I push out an update and go to my app in the market app, it says that there is an update, but when I go to it, it only offers to open or remove (the currently installed version). Also the notes, etc are all old info.
Then if I enter into the comments, scroll around looking at newer comments, then back out of the comments to the main app page, then it seems to show the updated info and allows me to install the update to my app that mysteriously vanished moments ago.
Their latest version of the Market is buggy. :BangHead:
I have also recently had a few sales cancelled when I look at them in my reports and the reason is "internal market error" or something like that. I don't even know what that means, other than they didn't get the product and I didn't get the money. Google is a love-hate relationship for me.
Perhaps something like this is your problem?
Have you increased the version int & code on the newer file you are submitting and then upload it to the server? Then deactivate the old version, activate the new version, then press Save?
We may need pics or more details.... :sign0013: