@mexis15 (explanation for High Five beta, I'm sure you will find out how it's in previous chornicles):
First PVP zone is not the same as allowed to engage combat, for example an Arena like Aden's Colliseum is a PVP zone, where you don't get karma by killling a non flagged player and you don't get flagged after hitting the player, a zone where "engaging combat" is allowed is like any zone with monsters, if you hit a player you get flagged, if you kill a flagged player +1 PvP, if you kill a non-flagged player you get karma and +1 PK.
If you (still) want to make Gludin an Arena, go to data/zones/peace.xml find "gludin_town_peace#" where # is a number from 1 to 5 (in this case) and change type="PeaceZone" to type="ArenaZone", if you want to make it for PvP and PK just delete all the:
<zone name="guldiocastle_town_peace#"...
...
</zone>
If you are using another server version and it might have zones in SQL, find the zone and remove it using a GUI tool like Navicat.
@Tryskell don't get so serious about it, you can always provide a generic answer and request more information about it at the same time, is not possible to expect that every user (new or not) in forum post all the information, also I see as best solution if you are tired or you don't care, just don't answer and you will avoid lots of no-sense answers ^_^