The tool is the same as NBA 2K9 IFF Editor and I change the title of the software and replace the icon.
If you don't know how to use it, there's a video tutorial
Sorry for my bad English
And I empower MVPmods.com to release this tool if we update it.
I think maybe the modding tool can be released someday.
Discuss it here:
By the way, if you use this tool to make patches, I can post it in MLB-2K.com ,of course i'll add the author information.