Numerous people told you exactly how to fix this. The problem isn't your code, it's your viewpoint.

Stop looking for "the exact code"... there is no exact code, except the exact code that would work for your game, and no one really knows that except for you. If you don't know what your code actually does, then nobody knows, and you're stuck, so stop looking for "exact codes" and start learning what the heck each individual piece of coding means. There is no "the login code".

There are just little pieces of code which can add up to do what you want to happen when players login.

In the login proc for your mob, which might just be mob/Login() or might be mob/player/Login() or might be mob/somethingelse/Login() (I sure don't know, only you do... if you don't, then figure it out), you need to put either:

..()

to just have it put the character in the bottom corner of the map

or

src.loc = locate(x,y,z)

to have it place the mob at coordinates x,y,z


If there is ANYTHING you don't understand in this post, ASK a SPECIFIC question. Just repeating "Give me the exact code!" will not get any better answer then this.