Ok.. This didnt work at all..
<?xml version="1.0" encoding="UTF-8"?>
<!DOCTYPE plist PUBLIC "-//Apple//DTD PLIST 1.0//EN" "http://www.apple.com/DTDs/PropertyList-1.0.dtd">
<plist version="1.0">
<dict>
<key>Timeout</key>
<string>5</string>
<key>Kernel</key>
<string>mach_kernel</string>
<key>Kernel Flags</key>
<string></string>
<key>SMBIOSdefaults</key>
<string>No</string>
<key>GUI</key>
<string>No</string>
<key>Legacy Logo</key>
<string>Yes</string>
</dict>
</plist>

I changed under kernel flags to:
<key>Kernel Flags</key>
<string>-x32</string>

It didnt work.. and now everytime i went into sL i got : Hold down restart button problem..

So i went to leopard and changed com.apple.boot.plist to:<key>Kernel Flags</key>
<string>x32</string>

It didnt work either..
So i changed back to nothing..
And now i cant Go into SL..
I get Hold down Restart button error

( This is very weird :S beacuse when i tried only -v.. It worked.. :S )