Funny :laugh: your using the source to connect? The source files are the base of a program, pure code lines...but compiled they become the "program" in this case GameServer, DataServer, ConnectServer....etc. Every program from your PC is a compiled source. The source is written in C++ language in this case, lots of formulas in there, open it with Notepad to see what is in it. If you have the source file you can add new configs, modify anything, delete anything, fix bugs, i think you get the idea... so you can`t use the source to connect the game :laugh:.
As for the second issue you did not follow the guide (edit ip, sql pass/user) correctly, if you read the second page you will find some links that i shared with small tutorials in first page, but like a lot of newbies here i suppose you don`t search and don`t like to read either.