I've taken the IOS51 and Shop Channel installer by tona, and changed the source to download the latest IOS38. This IOS is being distributed with Animal Crossing, and possibly is needed for Wii Speak features to function properly. I am almost positive that this will work, and have uploaded the source code here. The only thing I can think of, is that Nintendo might not have IOS38 on their servers yet (unlikely). I have left the patching option included, so it will prompt whether to include the signing patch or not. I am assuming that PatchMii covers the whole patching process, as there is only a boolean to specify patch or not. This is the main reason I created this, as I want a safer IOS38 installed. If anyone could compile this, and possibly test, it would be greatly appreciated.