I made the file changes listed on two files, when uploading the changed files, the forum wouldn't even load a page (showed a white page for index) and generated an error.log on server. Did edits a second time again to files, just in case a mistake was made first time, also removed files in "cache folder" this time as well. But same thing, white blank page showed for forum homepage and error log generated again in root.
So don't know if making the edits on two files and then uploading them should have fixed this or not? But for me running Beta 3, you can't even load the forum after making these edits on two files and replacing the ones on server with them for forum.