You know you wanna look....
Okay guys, I have just finished spending the day creating registry fixes and batch files to do some of the things that I believe that the MRI is missing. Let me first explain how to create the files and then I will put down what you actually put in the files.
1. Open up your favorite text editor and create a new file. This can be Notepad, TextPad, etc. It doesn't really matter what program that you use.
2. Copy the text for the specific fix that you want into your text editor.
3. Save the file as xxxx.reg or xxxx.bat . Below, I have included the file names that I used for each of them so that you can tell whether the file needs to be a .reg file or a .bat file.
4. Run the file and have fun!
Yes, it's that simple. What? You thought it was going to be a long, boring discussion on exactly how to create the .reg files and all the associations? Nope, that might come later though. 
Enjoy!
Disable the Auto-Reboot after a Blue-Screen-Of-Death on Windows XP
DisableAutoRebootAfterBSOD.reg
REGEDIT4
;Disable Automatic Restart in the event of a BSOD
[HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Control\CrashControl]
"AutoReboot"=dword:00000000
Disable UAC (User Account Control) on Windows Vista
disableUAC.bat
C:\\Windows\System32\cmd.exe /k %windir%\System32\reg.exe ADD HKLM\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System /v EnableLUA /t REG_DWORD /d 0 /f
Remove the hidden files left by the MRI and Customizer
GSRemovalHiddenFolders.bat
IF EXIST "%ALLUSERSPROFILE%\Geek Squad\" (RMDIR /S /Q "%ALLUSERSPROFILE%\Geek Squad\")
IF EXIST "%ALLUSERSPROFILE%\Application Data\Geek Squad\" (RMDIR /S /Q "%ALLUSERSPROFILE%\Application Data\Geek Squad\")
Remove the registry entries left by the MRI and Customizer
GSRemovalRegistry.reg
REGEDIT4
[-HKEY_LOCAL_MACHINE\SOFTWARE\Geek Squad]
;This will delete the registry key left on a computer when the MRI is run. Make sure you also run the GSRemoval.bat file to remove the hidden files and folders also left on the computer after the MRI has been run.
Remove the language bar from your taskbar
RemoveLanguageBar.reg
REGEDIT4
;This edit will remove the language bar from your taskbar.
[HKEY_CURRENT_USER\Software\Microsoft\CTF\LangBar]
"ShowStatus"=dword:3
Show all file extensions, even ones that are trying to hide
ShowFileExtensions.reg
REGEDIT4
;This forces all file extensions to be shown.
[HKEY_CURRENT_USER\Software\Microsoft\Windows\CurrentVersion\Explorer\Advanced]
"HideFileExt"=dword:0
[HKEY_CURRENT_USER\Software\Microsoft\Windows\CurrentVersion\Explorer\Advanced]
"ShowSuperHidden"=dword:1
[HKEY_CURRENT_USER\Software\Microsoft\Windows\CurrentVersion\Explorer\Advanced]
"HideIcons"=dword:0
[HKEY_CURRENT_USER\Software\Microsoft\Windows\CurrentVersion\Explorer\Advanced]
"SuperHidden"=dword:0
Show all hidden files and folders. This includes showing the hidden system files and folders.
ShowHiddenFoldersAndFiles.reg
REGEDIT4
[-HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Explorer\Advanced\Folder\Hidden\SHOWALL\CheckedValue]
[HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Explorer\Advanced\Folder\Hidden\SHOWALL]
"CheckedValue"=dword:1
CD/DVD-ROM drives not working properly within Windows XP
CDROMNotWorkingWinXP.reg
REGEDIT4
[-HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Explorer\Advanced\Folder\Hidden\SHOWALL\CheckedValue]
[HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Explorer\Advanced\Folder\Hidden\SHOWALL]
"CheckedValue"=dword:1
Alright. That is all the fixes that I have come up with for now. I am going to work on some more tomorrow. I will get back to you guys as soon as I am finished working on the next round of them. Also, these fixes will be included on my next release of my boot disk. I will keep you guys updated. If you have any questions or want to see a registry tweak that is not listed here, please, repost here and I will see what I can do about getting it done.