http://metalslug.hitnews.pl/pl/index.php is a great link for Neo Rage X for metal slug 5 and kof 2003, also has the roms that work with these versions, fast dload speeds (mine is over 300k) and its easy to use (even in spanish)
I am looking for Kof 2003 and metal slug 5 for mame32.79 or neoragex i am also trying to get metal slug 4 to work on mame32.79, i have it for neoragex links would be helpful, for both rom and emulator.