I did a quick search and couldn't find anything about this.

So I used iToner to upload a few tones to the iPhone (1.1.1). Then I assigned different tones to different people in my contact list, which works.

However, after syncing the phone with my computer (Mac), all the customized ringtones became the default tone. (The uploaded tones are still in there.)

So what can I do so they won't change when I sync?

Thank you!