The OP is talking about this:
http://www.youtube.com/user/pocketno...35/1qj6Y7XnC4I
Pretty much you couldn't just rip a part of manilla out and bring it to another manilla. There's no landscape version to that build because Leo doesn't have a keyboard and HTC didn't even make a landscape version for any of the other pages except the photos and music tab. So there exist no landscape version to Manilla 2.5 or 2.6 for that matter