Dear MMowner's : D
i use AC Web Repack 7.7, and i noticed that T4 and T5 in shattrath doesnt cost anything, so ur players will get free T5 and T4.. thats not how you'd like it to be, right?
i've got a SQL file that fixes this, read on:
1. Open Navicat username is root password is ascent
2. Execute batch that you just downloaded items_extendedcost.sql
3. restart server
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hope this helped, cya =]