I can confirm that the GUID doesn't have to be 16 chars. I set mine to 1,2,3,4,etc... in order. As long as they are the same on the .m4r and mp3 file, that is all that matters.
I found this today. I haven't had a chance to test it yet. It says that it's the real deal.
http://www.tunjiafonja.com/iphoneringtonemaker/
Direct Download Link
http://www.efksoft.com/downloads/iPh...lpha-Setup.zip
This is what you will find if you follow the link:
iPhoneRingToneMaker 1.4, the preview release for iPhone 1.1.1 support
Now we have a fully functional version of iPhoneRingToneMaker that supports 1.1.1. We are still working on some minor final issues. However, if you really need to get new ringtones on your iPhone, you can use this version. Please note, this is just a preview release and the final version may change somethings.
Note: Do Not upgrade your phone to 1.1.1 just to use this. Keep using the current version of iPhoneRingToneMaker and just wait till we release the final version of 1.4
One Main issue to be aware of:
If after every sync with iTunes your ringtones disappear, launch iPhoneRingToneMaker and go to the "Manage my Ringtones" screen and select the link that says "To restore your ringtones please click here."
Download Preview release here and simply install it over the current one you are running.