Ive only done this to the Pal16x9 files but you could edit the others just the same so lets roll.
STEP 1
In Home.xml
find:
<control type="image">
<description>MC360 Logo</description>
<posx>475</posx>
<posy>83</posy>
<width>104</width>
<height>128</height>
<texture>MC360_logo.png</texture>
<visible>!Control.HasFocus(1) + !Control.HasFocus(2)</visible>
</control>
and change to this :
<control type="image">
<description>MC360 Logo</description>
<posx>475</posx>
<posy>83</posy>
<width>104</width>
<height>128</height>
<info>Skin.String(MediaLogo)</info>
<texture>MC360_logo.png</texture>
<visible>!Control.HasFocus(1) + !Control.HasFocus(2)</visible>
</control>
no do the same to custom1112_GamesHome.xml and custom1112_GamesHome.xml
but change the <info>Skin.String(MediaLogo)</info> to
<info>Skin.String(GamesLogo)</info> for games blade
<info>Skin.String(KAILogo)</info> for the kai(live) blade
download custom1130_GuideLogoOptions.xml and place in your pal folder(wait till end of flash movie for download)
this is just a copy of the shutdown menu but with custom logo buttons
now just select some icons
put customLogo-Img.png in the mc360 media folder(with textures.xpr)

screenshot

