can't buy with npc cashshop

[Kira Cross]

The problem:
I buy something but the item don't comes and the cash aren't reduced.

Client: 20100730 (i don't want change it).

I'm with a problem with cashshop NPC.
*NPC CASH, not cash button*
(no there isn't problem with the script of npc, i've used it in other clients and they work fine)

Packet_db_ver:25
clientinfo:<version>25</version>
no errors on map-server.


i was looking for a lot of boards and topics and i saw the same problem, so i have to change some lines in clif.c

but all the solutions its for hexed 2012-04-10 or 2013 hexeds.

what is the solution for 20100730 hexeds?

Thanks.
(Sorry if i commit some english errors).