Forgot to say thanks for the info. Tougeki version would be the one to get then? If the steam version is a port of 360. Should one show up somewhere for a decent price.
Yes, the steam version is just a pc port of the 360 version. Both steam and 360 are the tougeki version. The original KOF02um only came out on ps2, so there is no need to worry about mistaken the original version with the tougeki version, unless you still play on a ps2.
Luckily, the steam version can be modded with scanlines with the help of this mod: https://steamcommunity.com/sharedfiles/filedetails/?id=360394186&insideModal=1
All the steam kof games can be use the scanline mod.