Well first off don't ask on where to download games because you will not get answer for this!..Next Black Bottom discs you're refering to is Playstation one games..Blue Bottom ones are PS2 and Silver are Ps2 DVD roms..Also what version of Neo chip do you got?
Neo.2.2, neo 2.5 neo4..Need more info..
Try the following site on tutorials:
http://www.psxcopyworld.co.uk/