2nd thing: the 23 and 3 are charsmaxes from the arrays you've declared.
For example, you have
Arg1[24], Arg2[4]
read_argv(1, Arg1, charsmax(Arg1))
read_argv(2, Arg2, charsmax(Arg2))
This would just be the same
3rd thing,
It's very hard to explain, but how much players can there be max in a server? 32, how many characters can a STEAM ID have? This is still being complained about, but it's just the size of the array you want it to be.