Where can i edit this ?

Hello All im Using Gunz July 21 2008 files.
some of my item in the shop get "left time"..
i dont know how to explain it ..
for Example : Katana (6 days)
and after 6 days this katana disappear.
some items got 15 days , but
i want to delete it . i want to change this items
and make they to stay forever in my invetory.
where i can change it ?
(if this in Zitem.xml - tell me the line please)
and sorry for my bad bad bad english !!!!!!!!!!!!!

Check if the zitem nodes of those items have a rent period function like this:

Code:

---

rent_period="7"

---

If so, remove it & make sure that you've edited both the server's and client's zitem.