[AIped]

im not sure how it works with CMD but with sscanf it should look like this;

pawn Code:

dcmd_skin(playerid, params[])
{
    new Setto;
    if(sscanf(params, "ii",Setto))
    {
        SetPlayerSkin(playerid, Setto);
        new SStr[125];
        format(SStr, sizeof(SStr), "Your skin was set to %f.", Setto);
        SendClientMessage(playerid,COLOR_ORANGE,SStr);
    }
    return 1;
}

Maybe you see what you are doing wrong by seeing this