Thanks, yagami. So they are available only after one full season. Will know in future.
Cheating? That maybe, if it's really as you say - they are on free transfer. Why have they made them free? In PES3 they were expensive as hell.
I know, many of you think that it's inappropriate to use those players, but you just have to accept my way of playing ML. Since those classic players have been available I'm always trying to make a sort of a classic club team. That's just way I like it. I don't care about actual transfers and staying up to date, especially considering how full of s h i t is modern day's football bussiness.
Besides, if I wouldn't use them in ML I'd never got the enjoyment to play with Maradona and guys in my team, because ML is usually only thing I'm occupied playing PES.
Besides Nr 2.: I checked most of classic player's stats in edit mode and tell you what, they aren't that good anyway. Only some uuber guys like Pele, Rivellino, Beckenbauer, but mostly just ordinary decent players with classical personalities.
Besides Nr 3.: and what's the big difference between playing with team full of zidanes, figos n' ronaldinhos or using tostaos, burruchagas and garrinchas.