Can't create App Store account?
All you need to use for an App Store account is your Apple ID.

If what you're trying to do is create an Apple ID and you keep running into Code: 5107 errors, you can try using a browser instead to create your Apple ID.

To do this:


Launch Safari (or your preferred web browser)
Go to: https://appleid.apple.com/account
Complete the form etc to create your Apple ID


Once you've created your Apple ID (or if you already had an Apple ID), sign in to the App Store. You can do this as follows:


Launch the App Store app
Click on the Store menu
Select Sign In...
Enter your Apple ID
Enter your Password
Click on Sign In.


If I've misunderstood your question, please let me know.