Thanks for the suggestion. I looked into it, but I think it's something else. I believe it's a Mac/PC issue, since I can download and use the patch from RHDN, but they say it's corrupt. I've encountered the issue before with zip files, but I can't remember how I solved it.
It might have to do with folders: that is, I can't zip a folder, only files. I've re-compressed the IPS files and readme and attached it to this post, if anyone has the time try it.