Mapinfo.shn and field.txt error

hi guys i hav an issue every client i use has a different field.txt to the mapinfo.shn, when i try and edit the map address in field.txt server wont start i dunno how its this royaly screwed but i have downloaded a few server files and they all the same

i.e Urg mapinfo is 17 field.txt is 22

so cant go to uru but like i say when i edit field.txt server crashes or just stops

and some 1 pont me in the direction of a valid field.txt or server files that are more reliable lol god knows i have spent hours on this and still fail.

thanks a bunch..

My first tip would be use Notepad to change Field.txt

Secondly, did you check your assert log?